Home / 29,686.38-40,967.55-18,514.86

Finding the Fourth Proportional to 29,686.38, 40,967.55 and 18,514.86

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Solution

The fourth proportional to 29,686.38, 40,967.55 and 18,514.86 is: 25,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,686.38 : 40,967.55 = 18,514.86 : x
  2. Step 2: Convert to fraction form
    29,686.38/40,967.55 = 18,514.86/x
  3. Step 3: Cross multiply
    29,686.38x = 40,967.55 × 18,514.86
  4. Step 4: Simplify right side
    29,686.38x = 758,508,452.79
  5. Step 5: Solve for x
    x = 758,508,452.79/29,686.38
  6. Step 6: Final answer
    x = 25,550.72

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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.