Home / 20,169.71-30,254.56-6,129.85

Finding the Fourth Proportional to 20,169.71, 30,254.56 and 6,129.85

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Solution

The fourth proportional to 20,169.71, 30,254.56 and 6,129.85 is: 9,194.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.71 : 30,254.56 = 6,129.85 : x
  2. Step 2: Convert to fraction form
    20,169.71/30,254.56 = 6,129.85/x
  3. Step 3: Cross multiply
    20,169.71x = 30,254.56 × 6,129.85
  4. Step 4: Simplify right side
    20,169.71x = 185,455,999.95
  5. Step 5: Solve for x
    x = 185,455,999.95/20,169.71
  6. Step 6: Final answer
    x = 9,194.78

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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.