Home / 20,351.20-30,531.17-6,310.93

Finding the Fourth Proportional to 20,351.20, 30,531.17 and 6,310.93

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Solution

The fourth proportional to 20,351.20, 30,531.17 and 6,310.93 is: 9,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.20 : 30,531.17 = 6,310.93 : x
  2. Step 2: Convert to fraction form
    20,351.20/30,531.17 = 6,310.93/x
  3. Step 3: Cross multiply
    20,351.20x = 30,531.17 × 6,310.93
  4. Step 4: Simplify right side
    20,351.20x = 192,680,076.69
  5. Step 5: Solve for x
    x = 192,680,076.69/20,351.20
  6. Step 6: Final answer
    x = 9,467.75

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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.