Home / 38,631.39-57,934.52-12,329.88

Finding the Fourth Proportional to 38,631.39, 57,934.52 and 12,329.88

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Solution

The fourth proportional to 38,631.39, 57,934.52 and 12,329.88 is: 18,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,631.39 : 57,934.52 = 12,329.88 : x
  2. Step 2: Convert to fraction form
    38,631.39/57,934.52 = 12,329.88/x
  3. Step 3: Cross multiply
    38,631.39x = 57,934.52 × 12,329.88
  4. Step 4: Simplify right side
    38,631.39x = 714,325,679.46
  5. Step 5: Solve for x
    x = 714,325,679.46/38,631.39
  6. Step 6: Final answer
    x = 18,490.81

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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.