Home / 20,614.25-28,447.68-11,182.85

Finding the Fourth Proportional to 20,614.25, 28,447.68 and 11,182.85

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Solution

The fourth proportional to 20,614.25, 28,447.68 and 11,182.85 is: 15,432.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,614.25 : 28,447.68 = 11,182.85 : x
  2. Step 2: Convert to fraction form
    20,614.25/28,447.68 = 11,182.85/x
  3. Step 3: Cross multiply
    20,614.25x = 28,447.68 × 11,182.85
  4. Step 4: Simplify right side
    20,614.25x = 318,126,138.29
  5. Step 5: Solve for x
    x = 318,126,138.29/20,614.25
  6. Step 6: Final answer
    x = 15,432.34

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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.