solve for the vault of the variable “a” in the proportion

Question

10 a
— = —
15 42
a=24
a=27
a=28
a=32

Answer 1

To solve for the value of variable "a" in the proportion, we can cross-multiply:

10 * 42 = 15 * a

420 = 15a

Divide both sides of the equation by 15:

420/15 = a

a = 28

Therefore, the solution for the variable "a" in the proportion is a = 28.