Home / 20,132.10-30,198.15-14,227.20

Finding the Fourth Proportional to 20,132.10, 30,198.15 and 14,227.20

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Solution

The fourth proportional to 20,132.10, 30,198.15 and 14,227.20 is: 21,340.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,132.10 : 30,198.15 = 14,227.20 : x
  2. Step 2: Convert to fraction form
    20,132.10/30,198.15 = 14,227.20/x
  3. Step 3: Cross multiply
    20,132.10x = 30,198.15 × 14,227.20
  4. Step 4: Simplify right side
    20,132.10x = 429,635,119.68
  5. Step 5: Solve for x
    x = 429,635,119.68/20,132.10
  6. Step 6: Final answer
    x = 21,340.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.