Home / 42,097.68-63,156.92-12,515.38

Finding the Fourth Proportional to 42,097.68, 63,156.92 and 12,515.38

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Solution

The fourth proportional to 42,097.68, 63,156.92 and 12,515.38 is: 18,776.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,097.68 : 63,156.92 = 12,515.38 : x
  2. Step 2: Convert to fraction form
    42,097.68/63,156.92 = 12,515.38/x
  3. Step 3: Cross multiply
    42,097.68x = 63,156.92 × 12,515.38
  4. Step 4: Simplify right side
    42,097.68x = 790,432,853.43
  5. Step 5: Solve for x
    x = 790,432,853.43/42,097.68
  6. Step 6: Final answer
    x = 18,776.16

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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.