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Finding the Fourth Proportional to 39,850, 54,993 and 22,186

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Solution

The fourth proportional to 39,850, 54,993 and 22,186 is: 30,616.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,850 : 54,993 = 22,186 : x
  2. Step 2: Convert to fraction form
    39,850/54,993 = 22,186/x
  3. Step 3: Cross multiply
    39,850x = 54,993 × 22,186
  4. Step 4: Simplify right side
    39,850x = 1,220,074,698
  5. Step 5: Solve for x
    x = 1,220,074,698/39,850
  6. Step 6: Final answer
    x = 30,616.68

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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.