Home / 22,517.56-31,067.82-15,446.20

Finding the Fourth Proportional to 22,517.56, 31,067.82 and 15,446.20

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Solution

The fourth proportional to 22,517.56, 31,067.82 and 15,446.20 is: 21,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,517.56 : 31,067.82 = 15,446.20 : x
  2. Step 2: Convert to fraction form
    22,517.56/31,067.82 = 15,446.20/x
  3. Step 3: Cross multiply
    22,517.56x = 31,067.82 × 15,446.20
  4. Step 4: Simplify right side
    22,517.56x = 479,879,761.28
  5. Step 5: Solve for x
    x = 479,879,761.28/22,517.56
  6. Step 6: Final answer
    x = 21,311.36

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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.