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Finding the Fourth Proportional to 17,331, 25,999.68 and 5,487.78

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Solution

The fourth proportional to 17,331, 25,999.68 and 5,487.78 is: 8,232.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,331 : 25,999.68 = 5,487.78 : x
  2. Step 2: Convert to fraction form
    17,331/25,999.68 = 5,487.78/x
  3. Step 3: Cross multiply
    17,331x = 25,999.68 × 5,487.78
  4. Step 4: Simplify right side
    17,331x = 142,680,523.91
  5. Step 5: Solve for x
    x = 142,680,523.91/17,331
  6. Step 6: Final answer
    x = 8,232.68

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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.