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Finding the Fourth Proportional to 38,327.50, 52,892.76 and 21,560.50

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Solution

The fourth proportional to 38,327.50, 52,892.76 and 21,560.50 is: 29,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,327.50 : 52,892.76 = 21,560.50 : x
  2. Step 2: Convert to fraction form
    38,327.50/52,892.76 = 21,560.50/x
  3. Step 3: Cross multiply
    38,327.50x = 52,892.76 × 21,560.50
  4. Step 4: Simplify right side
    38,327.50x = 1,140,394,351.98
  5. Step 5: Solve for x
    x = 1,140,394,351.98/38,327.50
  6. Step 6: Final answer
    x = 29,753.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.