Ana drew a map of the Panama Canal. In the scale Ana used for the map, 4 centimeters represents 20 kilometers. The actual length of the Panama Canal is 82 kilometers. What is the length in centimeters of the Panama Canal on Ana’s map?

1 answer

To find the length of the Panama Canal on Ana's map, we can set up a proportion:

4 centimeters represents 20 kilometers
x centimeters represents 82 kilometers

Using the proportion, we can solve for x:

4/20 = x/82
0.2 = x/82

Cross multiply:
x = 0.2 * 82
x = 16.4

Therefore, the length of the Panama Canal on Ana's map is 16.4 centimeters.