Home / 40,132.80-60,217.20-13,856.40

Finding the Fourth Proportional to 40,132.80, 60,217.20 and 13,856.40

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Solution

The fourth proportional to 40,132.80, 60,217.20 and 13,856.40 is: 20,790.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,132.80 : 60,217.20 = 13,856.40 : x
  2. Step 2: Convert to fraction form
    40,132.80/60,217.20 = 13,856.40/x
  3. Step 3: Cross multiply
    40,132.80x = 60,217.20 × 13,856.40
  4. Step 4: Simplify right side
    40,132.80x = 834,393,610.08
  5. Step 5: Solve for x
    x = 834,393,610.08/40,132.80
  6. Step 6: Final answer
    x = 20,790.81

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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.