Home / 40,132.80-60,236.20-20,425.50

Finding the Fourth Proportional to 40,132.80, 60,236.20 and 20,425.50

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Solution

The fourth proportional to 40,132.80, 60,236.20 and 20,425.50 is: 30,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,132.80 : 60,236.20 = 20,425.50 : x
  2. Step 2: Convert to fraction form
    40,132.80/60,236.20 = 20,425.50/x
  3. Step 3: Cross multiply
    40,132.80x = 60,236.20 × 20,425.50
  4. Step 4: Simplify right side
    40,132.80x = 1,230,354,503.10
  5. Step 5: Solve for x
    x = 1,230,354,503.10/40,132.80
  6. Step 6: Final answer
    x = 30,657.08

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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.