Home / 20,508.59-30,761.87-8,030.90

Finding the Fourth Proportional to 20,508.59, 30,761.87 and 8,030.90

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Solution

The fourth proportional to 20,508.59, 30,761.87 and 8,030.90 is: 12,045.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.59 : 30,761.87 = 8,030.90 : x
  2. Step 2: Convert to fraction form
    20,508.59/30,761.87 = 8,030.90/x
  3. Step 3: Cross multiply
    20,508.59x = 30,761.87 × 8,030.90
  4. Step 4: Simplify right side
    20,508.59x = 247,045,538.53
  5. Step 5: Solve for x
    x = 247,045,538.53/20,508.59
  6. Step 6: Final answer
    x = 12,045.95

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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.