Home / 20,717.26-28,591.42-11,767.56

Finding the Fourth Proportional to 20,717.26, 28,591.42 and 11,767.56

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Solution

The fourth proportional to 20,717.26, 28,591.42 and 11,767.56 is: 16,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.26 : 28,591.42 = 11,767.56 : x
  2. Step 2: Convert to fraction form
    20,717.26/28,591.42 = 11,767.56/x
  3. Step 3: Cross multiply
    20,717.26x = 28,591.42 × 11,767.56
  4. Step 4: Simplify right side
    20,717.26x = 336,451,250.34
  5. Step 5: Solve for x
    x = 336,451,250.34/20,717.26
  6. Step 6: Final answer
    x = 16,240.14

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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.