Home / 20,658.26-28,508.82-11,227.43

Finding the Fourth Proportional to 20,658.26, 28,508.82 and 11,227.43

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Solution

The fourth proportional to 20,658.26, 28,508.82 and 11,227.43 is: 15,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,658.26 : 28,508.82 = 11,227.43 : x
  2. Step 2: Convert to fraction form
    20,658.26/28,508.82 = 11,227.43/x
  3. Step 3: Cross multiply
    20,658.26x = 28,508.82 × 11,227.43
  4. Step 4: Simplify right side
    20,658.26x = 320,080,780.93
  5. Step 5: Solve for x
    x = 320,080,780.93/20,658.26
  6. Step 6: Final answer
    x = 15,494.08

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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.