Home / 22,475.57-31,006.67-13,517.78

Finding the Fourth Proportional to 22,475.57, 31,006.67 and 13,517.78

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Solution

The fourth proportional to 22,475.57, 31,006.67 and 13,517.78 is: 18,648.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,475.57 : 31,006.67 = 13,517.78 : x
  2. Step 2: Convert to fraction form
    22,475.57/31,006.67 = 13,517.78/x
  3. Step 3: Cross multiply
    22,475.57x = 31,006.67 × 13,517.78
  4. Step 4: Simplify right side
    22,475.57x = 419,141,120.97
  5. Step 5: Solve for x
    x = 419,141,120.97/22,475.57
  6. Step 6: Final answer
    x = 18,648.75

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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.