Home / 36,886.68-55,286.28-21,272.04

Finding the Fourth Proportional to 36,886.68, 55,286.28 and 21,272.04

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Solution

The fourth proportional to 36,886.68, 55,286.28 and 21,272.04 is: 31,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,886.68 : 55,286.28 = 21,272.04 : x
  2. Step 2: Convert to fraction form
    36,886.68/55,286.28 = 21,272.04/x
  3. Step 3: Cross multiply
    36,886.68x = 55,286.28 × 21,272.04
  4. Step 4: Simplify right side
    36,886.68x = 1,176,051,959.61
  5. Step 5: Solve for x
    x = 1,176,051,959.61/36,886.68
  6. Step 6: Final answer
    x = 31,882.84

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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.