Home / 20,140.92-30,209.06-5,351.04

Finding the Fourth Proportional to 20,140.92, 30,209.06 and 5,351.04

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Solution

The fourth proportional to 20,140.92, 30,209.06 and 5,351.04 is: 8,025.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.92 : 30,209.06 = 5,351.04 : x
  2. Step 2: Convert to fraction form
    20,140.92/30,209.06 = 5,351.04/x
  3. Step 3: Cross multiply
    20,140.92x = 30,209.06 × 5,351.04
  4. Step 4: Simplify right side
    20,140.92x = 161,649,861.67
  5. Step 5: Solve for x
    x = 161,649,861.67/20,140.92
  6. Step 6: Final answer
    x = 8,025.94

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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.