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Finding the Fourth Proportional to 22,505.48, 33,732.48 and 13,720.88

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Solution

The fourth proportional to 22,505.48, 33,732.48 and 13,720.88 is: 20,565.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,505.48 : 33,732.48 = 13,720.88 : x
  2. Step 2: Convert to fraction form
    22,505.48/33,732.48 = 13,720.88/x
  3. Step 3: Cross multiply
    22,505.48x = 33,732.48 × 13,720.88
  4. Step 4: Simplify right side
    22,505.48x = 462,839,310.18
  5. Step 5: Solve for x
    x = 462,839,310.18/22,505.48
  6. Step 6: Final answer
    x = 20,565.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.