Home / 42,132.62-63,198.93-12,549.69

Finding the Fourth Proportional to 42,132.62, 63,198.93 and 12,549.69

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Solution

The fourth proportional to 42,132.62, 63,198.93 and 12,549.69 is: 18,824.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,132.62 : 63,198.93 = 12,549.69 : x
  2. Step 2: Convert to fraction form
    42,132.62/63,198.93 = 12,549.69/x
  3. Step 3: Cross multiply
    42,132.62x = 63,198.93 × 12,549.69
  4. Step 4: Simplify right side
    42,132.62x = 793,126,979.83
  5. Step 5: Solve for x
    x = 793,126,979.83/42,132.62
  6. Step 6: Final answer
    x = 18,824.53

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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.