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Finding the Fourth Proportional to 22,377.80, 30,882.26 and 12,819.26

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Solution

The fourth proportional to 22,377.80, 30,882.26 and 12,819.26 is: 17,691.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,377.80 : 30,882.26 = 12,819.26 : x
  2. Step 2: Convert to fraction form
    22,377.80/30,882.26 = 12,819.26/x
  3. Step 3: Cross multiply
    22,377.80x = 30,882.26 × 12,819.26
  4. Step 4: Simplify right side
    22,377.80x = 395,887,720.33
  5. Step 5: Solve for x
    x = 395,887,720.33/22,377.80
  6. Step 6: Final answer
    x = 17,691.09

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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.