Home / 20,534.27-28,337.26-11,581.75

Finding the Fourth Proportional to 20,534.27, 28,337.26 and 11,581.75

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Solution

The fourth proportional to 20,534.27, 28,337.26 and 11,581.75 is: 15,982.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.27 : 28,337.26 = 11,581.75 : x
  2. Step 2: Convert to fraction form
    20,534.27/28,337.26 = 11,581.75/x
  3. Step 3: Cross multiply
    20,534.27x = 28,337.26 × 11,581.75
  4. Step 4: Simplify right side
    20,534.27x = 328,194,961.21
  5. Step 5: Solve for x
    x = 328,194,961.21/20,534.27
  6. Step 6: Final answer
    x = 15,982.79

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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.