Home / 38,545.88-57,843.42-21,015.70

Finding the Fourth Proportional to 38,545.88, 57,843.42 and 21,015.70

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Solution

The fourth proportional to 38,545.88, 57,843.42 and 21,015.70 is: 31,536.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,545.88 : 57,843.42 = 21,015.70 : x
  2. Step 2: Convert to fraction form
    38,545.88/57,843.42 = 21,015.70/x
  3. Step 3: Cross multiply
    38,545.88x = 57,843.42 × 21,015.70
  4. Step 4: Simplify right side
    38,545.88x = 1,215,620,063.65
  5. Step 5: Solve for x
    x = 1,215,620,063.65/38,545.88
  6. Step 6: Final answer
    x = 31,536.97

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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.