Home / 22,613.20-31,204.66-12,540.69

Finding the Fourth Proportional to 22,613.20, 31,204.66 and 12,540.69

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Solution

The fourth proportional to 22,613.20, 31,204.66 and 12,540.69 is: 17,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.20 : 31,204.66 = 12,540.69 : x
  2. Step 2: Convert to fraction form
    22,613.20/31,204.66 = 12,540.69/x
  3. Step 3: Cross multiply
    22,613.20x = 31,204.66 × 12,540.69
  4. Step 4: Simplify right side
    22,613.20x = 391,327,858.25
  5. Step 5: Solve for x
    x = 391,327,858.25/22,613.20
  6. Step 6: Final answer
    x = 17,305.29

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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.