Home / 20,163.90-30,234.03-6,119.70

Finding the Fourth Proportional to 20,163.90, 30,234.03 and 6,119.70

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Solution

The fourth proportional to 20,163.90, 30,234.03 and 6,119.70 is: 9,175.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.90 : 30,234.03 = 6,119.70 : x
  2. Step 2: Convert to fraction form
    20,163.90/30,234.03 = 6,119.70/x
  3. Step 3: Cross multiply
    20,163.90x = 30,234.03 × 6,119.70
  4. Step 4: Simplify right side
    20,163.90x = 185,023,193.39
  5. Step 5: Solve for x
    x = 185,023,193.39/20,163.90
  6. Step 6: Final answer
    x = 9,175.96

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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.