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Finding the Fourth Proportional to 22,480.80, 33,721.20 and 13,732.80

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Solution

The fourth proportional to 22,480.80, 33,721.20 and 13,732.80 is: 20,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,480.80 : 33,721.20 = 13,732.80 : x
  2. Step 2: Convert to fraction form
    22,480.80/33,721.20 = 13,732.80/x
  3. Step 3: Cross multiply
    22,480.80x = 33,721.20 × 13,732.80
  4. Step 4: Simplify right side
    22,480.80x = 463,086,495.36
  5. Step 5: Solve for x
    x = 463,086,495.36/22,480.80
  6. Step 6: Final answer
    x = 20,599.20

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