Home / 42,031.20-63,046.53-12,449.19

Finding the Fourth Proportional to 42,031.20, 63,046.53 and 12,449.19

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Solution

The fourth proportional to 42,031.20, 63,046.53 and 12,449.19 is: 18,673.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,031.20 : 63,046.53 = 12,449.19 : x
  2. Step 2: Convert to fraction form
    42,031.20/63,046.53 = 12,449.19/x
  3. Step 3: Cross multiply
    42,031.20x = 63,046.53 × 12,449.19
  4. Step 4: Simplify right side
    42,031.20x = 784,878,230.81
  5. Step 5: Solve for x
    x = 784,878,230.81/42,031.20
  6. Step 6: Final answer
    x = 18,673.71

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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.