Home / 37,149.12-55,721.72-12,185.88

Finding the Fourth Proportional to 37,149.12, 55,721.72 and 12,185.88

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Solution

The fourth proportional to 37,149.12, 55,721.72 and 12,185.88 is: 18,278.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,149.12 : 55,721.72 = 12,185.88 : x
  2. Step 2: Convert to fraction form
    37,149.12/55,721.72 = 12,185.88/x
  3. Step 3: Cross multiply
    37,149.12x = 55,721.72 × 12,185.88
  4. Step 4: Simplify right side
    37,149.12x = 679,018,132.38
  5. Step 5: Solve for x
    x = 679,018,132.38/37,149.12
  6. Step 6: Final answer
    x = 18,278.18

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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.