Home / 20,508.18-30,767.67-6,468.72

Finding the Fourth Proportional to 20,508.18, 30,767.67 and 6,468.72

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Solution

The fourth proportional to 20,508.18, 30,767.67 and 6,468.72 is: 9,704.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,508.18 : 30,767.67 = 6,468.72 : x
  2. Step 2: Convert to fraction form
    20,508.18/30,767.67 = 6,468.72/x
  3. Step 3: Cross multiply
    20,508.18x = 30,767.67 × 6,468.72
  4. Step 4: Simplify right side
    20,508.18x = 199,027,442.28
  5. Step 5: Solve for x
    x = 199,027,442.28/20,508.18
  6. Step 6: Final answer
    x = 9,704.78

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1.5x scale

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.