Home / 20,217.62-27,901.92-11,144.60

Finding the Fourth Proportional to 20,217.62, 27,901.92 and 11,144.60

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Solution

The fourth proportional to 20,217.62, 27,901.92 and 11,144.60 is: 15,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.62 : 27,901.92 = 11,144.60 : x
  2. Step 2: Convert to fraction form
    20,217.62/27,901.92 = 11,144.60/x
  3. Step 3: Cross multiply
    20,217.62x = 27,901.92 × 11,144.60
  4. Step 4: Simplify right side
    20,217.62x = 310,955,598.12
  5. Step 5: Solve for x
    x = 310,955,598.12/20,217.62
  6. Step 6: Final answer
    x = 15,380.43

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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.