Home / 20,162.10-30,243.15-5,373.30

Finding the Fourth Proportional to 20,162.10, 30,243.15 and 5,373.30

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Solution

The fourth proportional to 20,162.10, 30,243.15 and 5,373.30 is: 8,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.10 : 30,243.15 = 5,373.30 : x
  2. Step 2: Convert to fraction form
    20,162.10/30,243.15 = 5,373.30/x
  3. Step 3: Cross multiply
    20,162.10x = 30,243.15 × 5,373.30
  4. Step 4: Simplify right side
    20,162.10x = 162,505,517.90
  5. Step 5: Solve for x
    x = 162,505,517.90/20,162.10
  6. Step 6: Final answer
    x = 8,059.95

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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.