Home / 23,149.60-31,961.28-15,205.92

Finding the Fourth Proportional to 23,149.60, 31,961.28 and 15,205.92

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Solution

The fourth proportional to 23,149.60, 31,961.28 and 15,205.92 is: 20,993.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,149.60 : 31,961.28 = 15,205.92 : x
  2. Step 2: Convert to fraction form
    23,149.60/31,961.28 = 15,205.92/x
  3. Step 3: Cross multiply
    23,149.60x = 31,961.28 × 15,205.92
  4. Step 4: Simplify right side
    23,149.60x = 486,000,666.78
  5. Step 5: Solve for x
    x = 486,000,666.78/23,149.60
  6. Step 6: Final answer
    x = 20,993.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.