Home / 40,012.12-60,018.20-10,429.88

Finding the Fourth Proportional to 40,012.12, 60,018.20 and 10,429.88

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Solution

The fourth proportional to 40,012.12, 60,018.20 and 10,429.88 is: 15,644.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,012.12 : 60,018.20 = 10,429.88 : x
  2. Step 2: Convert to fraction form
    40,012.12/60,018.20 = 10,429.88/x
  3. Step 3: Cross multiply
    40,012.12x = 60,018.20 × 10,429.88
  4. Step 4: Simplify right side
    40,012.12x = 625,982,623.82
  5. Step 5: Solve for x
    x = 625,982,623.82/40,012.12
  6. Step 6: Final answer
    x = 15,644.83

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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.