Home / 31,469.28-47,187.68-9,279.84

Finding the Fourth Proportional to 31,469.28, 47,187.68 and 9,279.84

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Solution

The fourth proportional to 31,469.28, 47,187.68 and 9,279.84 is: 13,914.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.28 : 47,187.68 = 9,279.84 : x
  2. Step 2: Convert to fraction form
    31,469.28/47,187.68 = 9,279.84/x
  3. Step 3: Cross multiply
    31,469.28x = 47,187.68 × 9,279.84
  4. Step 4: Simplify right side
    31,469.28x = 437,894,073.97
  5. Step 5: Solve for x
    x = 437,894,073.97/31,469.28
  6. Step 6: Final answer
    x = 13,914.97

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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.