Home / 13,353.68-20,031.02-3,993.82

Finding the Fourth Proportional to 13,353.68, 20,031.02 and 3,993.82

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Solution

The fourth proportional to 13,353.68, 20,031.02 and 3,993.82 is: 5,990.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353.68 : 20,031.02 = 3,993.82 : x
  2. Step 2: Convert to fraction form
    13,353.68/20,031.02 = 3,993.82/x
  3. Step 3: Cross multiply
    13,353.68x = 20,031.02 × 3,993.82
  4. Step 4: Simplify right side
    13,353.68x = 80,000,288.30
  5. Step 5: Solve for x
    x = 80,000,288.30/13,353.68
  6. Step 6: Final answer
    x = 5,990.88

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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.