Home / 40,278.40-60,403.24-15,311.80

Finding the Fourth Proportional to 40,278.40, 60,403.24 and 15,311.80

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Solution

The fourth proportional to 40,278.40, 60,403.24 and 15,311.80 is: 22,962.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.40 : 60,403.24 = 15,311.80 : x
  2. Step 2: Convert to fraction form
    40,278.40/60,403.24 = 15,311.80/x
  3. Step 3: Cross multiply
    40,278.40x = 60,403.24 × 15,311.80
  4. Step 4: Simplify right side
    40,278.40x = 924,882,330.23
  5. Step 5: Solve for x
    x = 924,882,330.23/40,278.40
  6. Step 6: Final answer
    x = 22,962.24

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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.