Home / 40,008.12-60,012.20-10,425.88

Finding the Fourth Proportional to 40,008.12, 60,012.20 and 10,425.88

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Solution

The fourth proportional to 40,008.12, 60,012.20 and 10,425.88 is: 15,638.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,008.12 : 60,012.20 = 10,425.88 : x
  2. Step 2: Convert to fraction form
    40,008.12/60,012.20 = 10,425.88/x
  3. Step 3: Cross multiply
    40,008.12x = 60,012.20 × 10,425.88
  4. Step 4: Simplify right side
    40,008.12x = 625,679,995.74
  5. Step 5: Solve for x
    x = 625,679,995.74/40,008.12
  6. Step 6: Final answer
    x = 15,638.83

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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.