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Finding the Fourth Proportional to 40,337.84, 60,512.52 and 12,638

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Solution

The fourth proportional to 40,337.84, 60,512.52 and 12,638 is: 18,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,337.84 : 60,512.52 = 12,638 : x
  2. Step 2: Convert to fraction form
    40,337.84/60,512.52 = 12,638/x
  3. Step 3: Cross multiply
    40,337.84x = 60,512.52 × 12,638
  4. Step 4: Simplify right side
    40,337.84x = 764,757,227.76
  5. Step 5: Solve for x
    x = 764,757,227.76/40,337.84
  6. Step 6: Final answer
    x = 18,958.80

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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.