Home / 20,454.68-30,672.27-7,126.04

Finding the Fourth Proportional to 20,454.68, 30,672.27 and 7,126.04

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Solution

The fourth proportional to 20,454.68, 30,672.27 and 7,126.04 is: 10,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.68 : 30,672.27 = 7,126.04 : x
  2. Step 2: Convert to fraction form
    20,454.68/30,672.27 = 7,126.04/x
  3. Step 3: Cross multiply
    20,454.68x = 30,672.27 × 7,126.04
  4. Step 4: Simplify right side
    20,454.68x = 218,571,822.91
  5. Step 5: Solve for x
    x = 218,571,822.91/20,454.68
  6. Step 6: Final answer
    x = 10,685.66

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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.