Home / 31,919.67-47,858.94-15,279.30

Finding the Fourth Proportional to 31,919.67, 47,858.94 and 15,279.30

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Solution

The fourth proportional to 31,919.67, 47,858.94 and 15,279.30 is: 22,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,919.67 : 47,858.94 = 15,279.30 : x
  2. Step 2: Convert to fraction form
    31,919.67/47,858.94 = 15,279.30/x
  3. Step 3: Cross multiply
    31,919.67x = 47,858.94 × 15,279.30
  4. Step 4: Simplify right side
    31,919.67x = 731,251,101.94
  5. Step 5: Solve for x
    x = 731,251,101.94/31,919.67
  6. Step 6: Final answer
    x = 22,909.11

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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.