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Finding the Fourth Proportional to 18,494.92, 25,514.08 and 17,778.78

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Solution

The fourth proportional to 18,494.92, 25,514.08 and 17,778.78 is: 24,526.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,494.92 : 25,514.08 = 17,778.78 : x
  2. Step 2: Convert to fraction form
    18,494.92/25,514.08 = 17,778.78/x
  3. Step 3: Cross multiply
    18,494.92x = 25,514.08 × 17,778.78
  4. Step 4: Simplify right side
    18,494.92x = 453,609,215.22
  5. Step 5: Solve for x
    x = 453,609,215.22/18,494.92
  6. Step 6: Final answer
    x = 24,526.15

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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.