Home / 36,918.20-55,382.78-11,949.88

Finding the Fourth Proportional to 36,918.20, 55,382.78 and 11,949.88

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Solution

The fourth proportional to 36,918.20, 55,382.78 and 11,949.88 is: 17,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.20 : 55,382.78 = 11,949.88 : x
  2. Step 2: Convert to fraction form
    36,918.20/55,382.78 = 11,949.88/x
  3. Step 3: Cross multiply
    36,918.20x = 55,382.78 × 11,949.88
  4. Step 4: Simplify right side
    36,918.20x = 661,817,575.07
  5. Step 5: Solve for x
    x = 661,817,575.07/36,918.20
  6. Step 6: Final answer
    x = 17,926.59

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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.