Home / 31,534.92-43,524.50-18,115.38

Finding the Fourth Proportional to 31,534.92, 43,524.50 and 18,115.38

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Solution

The fourth proportional to 31,534.92, 43,524.50 and 18,115.38 is: 25,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.92 : 43,524.50 = 18,115.38 : x
  2. Step 2: Convert to fraction form
    31,534.92/43,524.50 = 18,115.38/x
  3. Step 3: Cross multiply
    31,534.92x = 43,524.50 × 18,115.38
  4. Step 4: Simplify right side
    31,534.92x = 788,462,766.23
  5. Step 5: Solve for x
    x = 788,462,766.23/31,534.92
  6. Step 6: Final answer
    x = 25,002.85

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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.