Home / 20,077.19-30,115.98-8,227.92

Finding the Fourth Proportional to 20,077.19, 30,115.98 and 8,227.92

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Solution

The fourth proportional to 20,077.19, 30,115.98 and 8,227.92 is: 12,341.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.19 : 30,115.98 = 8,227.92 : x
  2. Step 2: Convert to fraction form
    20,077.19/30,115.98 = 8,227.92/x
  3. Step 3: Cross multiply
    20,077.19x = 30,115.98 × 8,227.92
  4. Step 4: Simplify right side
    20,077.19x = 247,791,874.16
  5. Step 5: Solve for x
    x = 247,791,874.16/20,077.19
  6. Step 6: Final answer
    x = 12,341.96

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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.