Home / 20,531.10-30,775.05-8,046.30

Finding the Fourth Proportional to 20,531.10, 30,775.05 and 8,046.30

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Solution

The fourth proportional to 20,531.10, 30,775.05 and 8,046.30 is: 12,060.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,531.10 : 30,775.05 = 8,046.30 : x
  2. Step 2: Convert to fraction form
    20,531.10/30,775.05 = 8,046.30/x
  3. Step 3: Cross multiply
    20,531.10x = 30,775.05 × 8,046.30
  4. Step 4: Simplify right side
    20,531.10x = 247,625,284.82
  5. Step 5: Solve for x
    x = 247,625,284.82/20,531.10
  6. Step 6: Final answer
    x = 12,060.98

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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.