Home / 19,839.40-29,759.19-6,691.88

Finding the Fourth Proportional to 19,839.40, 29,759.19 and 6,691.88

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Solution

The fourth proportional to 19,839.40, 29,759.19 and 6,691.88 is: 10,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,839.40 : 29,759.19 = 6,691.88 : x
  2. Step 2: Convert to fraction form
    19,839.40/29,759.19 = 6,691.88/x
  3. Step 3: Cross multiply
    19,839.40x = 29,759.19 × 6,691.88
  4. Step 4: Simplify right side
    19,839.40x = 199,144,928.38
  5. Step 5: Solve for x
    x = 199,144,928.38/19,839.40
  6. Step 6: Final answer
    x = 10,037.85

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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.