SOLUTION: If an airplane in a 1 inch.: 4 feet scale drawing is 5 inches long, how long is the actual airplane?

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Question 614729: If an airplane in a 1 inch.: 4 feet scale drawing is 5 inches long, how long is the actual airplane?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
If an airplane in a 1 inch.: 4 feet scale drawing is 5 inches long, how long is the actual airplane?
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Use a proportion:
x ft/5in = 4ft/1 in
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x ft = 5(4/1)
x = 20 ft (length of the plane)
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Cheers,
Stan H.