Home / 38,408.52-57,612.78-12,115.92

Finding the Fourth Proportional to 38,408.52, 57,612.78 and 12,115.92

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Solution

The fourth proportional to 38,408.52, 57,612.78 and 12,115.92 is: 18,173.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.52 : 57,612.78 = 12,115.92 : x
  2. Step 2: Convert to fraction form
    38,408.52/57,612.78 = 12,115.92/x
  3. Step 3: Cross multiply
    38,408.52x = 57,612.78 × 12,115.92
  4. Step 4: Simplify right side
    38,408.52x = 698,031,833.46
  5. Step 5: Solve for x
    x = 698,031,833.46/38,408.52
  6. Step 6: Final answer
    x = 18,173.88

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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.