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Finding the Fourth Proportional to 25,572, 38,340.17 and 11,332.72

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Solution

The fourth proportional to 25,572, 38,340.17 and 11,332.72 is: 16,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,572 : 38,340.17 = 11,332.72 : x
  2. Step 2: Convert to fraction form
    25,572/38,340.17 = 11,332.72/x
  3. Step 3: Cross multiply
    25,572x = 38,340.17 × 11,332.72
  4. Step 4: Simplify right side
    25,572x = 434,498,354.70
  5. Step 5: Solve for x
    x = 434,498,354.70/25,572
  6. Step 6: Final answer
    x = 16,991.18

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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.