Home / 36,218.25-49,981.37-21,121.38

Finding the Fourth Proportional to 36,218.25, 49,981.37 and 21,121.38

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Solution

The fourth proportional to 36,218.25, 49,981.37 and 21,121.38 is: 29,147.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,218.25 : 49,981.37 = 21,121.38 : x
  2. Step 2: Convert to fraction form
    36,218.25/49,981.37 = 21,121.38/x
  3. Step 3: Cross multiply
    36,218.25x = 49,981.37 × 21,121.38
  4. Step 4: Simplify right side
    36,218.25x = 1,055,675,403.08
  5. Step 5: Solve for x
    x = 1,055,675,403.08/36,218.25
  6. Step 6: Final answer
    x = 29,147.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.