To determine the proportion that can be used to calculate the company's total monthly budget based on the information given, you can set up a proportion based on the relationship between the rent and the total budget.
Let \( B \) be the total monthly budget. According to the problem, 15% of \( B \) equals $3200. This relationship can be expressed mathematically as:
\[ 0.15B = 3200 \]
To express this in terms of a proportion, you can write it in the form of a ratio:
\[ \frac{0.15B}{B} = \frac{3200}{Total} \]
Here, \( Total \) represents the total budget. We can set this up as a proportion:
\[ \frac{15}{100} = \frac{3200}{B} \]
Thus, the proportion that can be used to calculate the company's total monthly budget is:
\[ \frac{15}{100} = \frac{3200}{B} \]
From this proportion, you can solve for \( B \).