SOLUTION: The length of the shadow of a flagpole was found to be 72 feet. The shadow of a 3 foot picket fence in line with the flagpole was 4 feet. What is the height of the flagpole?

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Question 126536: The length of the shadow of a flagpole was found to be 72 feet. The shadow of a 3 foot picket fence in line with the flagpole was 4 feet. What is the height of the flagpole?
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
the length of the shadow is proportional to the height of the object

let x="height of flagpole" __ 3%2F4=x%2F72

"cross" multiplying __ 216=4x