Home / 31,500.28-47,250.42-21,609.57

Finding the Fourth Proportional to 31,500.28, 47,250.42 and 21,609.57

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Solution

The fourth proportional to 31,500.28, 47,250.42 and 21,609.57 is: 32,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,500.28 : 47,250.42 = 21,609.57 : x
  2. Step 2: Convert to fraction form
    31,500.28/47,250.42 = 21,609.57/x
  3. Step 3: Cross multiply
    31,500.28x = 47,250.42 × 21,609.57
  4. Step 4: Simplify right side
    31,500.28x = 1,021,061,258.52
  5. Step 5: Solve for x
    x = 1,021,061,258.52/31,500.28
  6. Step 6: Final answer
    x = 32,414.36

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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.