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Finding the Fourth Proportional to 38,089.89, 57,134.85 and 10,387.89

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Solution

The fourth proportional to 38,089.89, 57,134.85 and 10,387.89 is: 15,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,089.89 : 57,134.85 = 10,387.89 : x
  2. Step 2: Convert to fraction form
    38,089.89/57,134.85 = 10,387.89/x
  3. Step 3: Cross multiply
    38,089.89x = 57,134.85 × 10,387.89
  4. Step 4: Simplify right side
    38,089.89x = 593,510,536.97
  5. Step 5: Solve for x
    x = 593,510,536.97/38,089.89
  6. Step 6: Final answer
    x = 15,581.84

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Similar ratio
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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.