Home / 31,475.76-47,217.96-9,290.76

Finding the Fourth Proportional to 31,475.76, 47,217.96 and 9,290.76

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Solution

The fourth proportional to 31,475.76, 47,217.96 and 9,290.76 is: 13,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.76 : 47,217.96 = 9,290.76 : x
  2. Step 2: Convert to fraction form
    31,475.76/47,217.96 = 9,290.76/x
  3. Step 3: Cross multiply
    31,475.76x = 47,217.96 × 9,290.76
  4. Step 4: Simplify right side
    31,475.76x = 438,690,734.05
  5. Step 5: Solve for x
    x = 438,690,734.05/31,475.76
  6. Step 6: Final answer
    x = 13,937.42

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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.