Home / 38,691.42-57,936.33-21,125.22

Finding the Fourth Proportional to 38,691.42, 57,936.33 and 21,125.22

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Solution

The fourth proportional to 38,691.42, 57,936.33 and 21,125.22 is: 31,632.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,691.42 : 57,936.33 = 21,125.22 : x
  2. Step 2: Convert to fraction form
    38,691.42/57,936.33 = 21,125.22/x
  3. Step 3: Cross multiply
    38,691.42x = 57,936.33 × 21,125.22
  4. Step 4: Simplify right side
    38,691.42x = 1,223,917,717.24
  5. Step 5: Solve for x
    x = 1,223,917,717.24/38,691.42
  6. Step 6: Final answer
    x = 31,632.79

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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.