Home / 22,791.43-31,452.11-12,719.76

Finding the Fourth Proportional to 22,791.43, 31,452.11 and 12,719.76

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Solution

The fourth proportional to 22,791.43, 31,452.11 and 12,719.76 is: 17,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,791.43 : 31,452.11 = 12,719.76 : x
  2. Step 2: Convert to fraction form
    22,791.43/31,452.11 = 12,719.76/x
  3. Step 3: Cross multiply
    22,791.43x = 31,452.11 × 12,719.76
  4. Step 4: Simplify right side
    22,791.43x = 400,063,227.09
  5. Step 5: Solve for x
    x = 400,063,227.09/22,791.43
  6. Step 6: Final answer
    x = 17,553.23

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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.