Home / 38,434.40-57,631.20-12,132.32

Finding the Fourth Proportional to 38,434.40, 57,631.20 and 12,132.32

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Solution

The fourth proportional to 38,434.40, 57,631.20 and 12,132.32 is: 18,192.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.40 : 57,631.20 = 12,132.32 : x
  2. Step 2: Convert to fraction form
    38,434.40/57,631.20 = 12,132.32/x
  3. Step 3: Cross multiply
    38,434.40x = 57,631.20 × 12,132.32
  4. Step 4: Simplify right side
    38,434.40x = 699,200,160.38
  5. Step 5: Solve for x
    x = 699,200,160.38/38,434.40
  6. Step 6: Final answer
    x = 18,192.04

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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.