Home / 23,191.92-32,004.60-13,120.20

Finding the Fourth Proportional to 23,191.92, 32,004.60 and 13,120.20

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Solution

The fourth proportional to 23,191.92, 32,004.60 and 13,120.20 is: 18,105.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,191.92 : 32,004.60 = 13,120.20 : x
  2. Step 2: Convert to fraction form
    23,191.92/32,004.60 = 13,120.20/x
  3. Step 3: Cross multiply
    23,191.92x = 32,004.60 × 13,120.20
  4. Step 4: Simplify right side
    23,191.92x = 419,906,752.92
  5. Step 5: Solve for x
    x = 419,906,752.92/23,191.92
  6. Step 6: Final answer
    x = 18,105.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.