Home / 22,789.22-31,452.10-13,358.66

Finding the Fourth Proportional to 22,789.22, 31,452.10 and 13,358.66

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Solution

The fourth proportional to 22,789.22, 31,452.10 and 13,358.66 is: 18,436.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,789.22 : 31,452.10 = 13,358.66 : x
  2. Step 2: Convert to fraction form
    22,789.22/31,452.10 = 13,358.66/x
  3. Step 3: Cross multiply
    22,789.22x = 31,452.10 × 13,358.66
  4. Step 4: Simplify right side
    22,789.22x = 420,157,719.53
  5. Step 5: Solve for x
    x = 420,157,719.53/22,789.22
  6. Step 6: Final answer
    x = 18,436.69

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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.