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Finding the Fourth Proportional to 63,938, 95,907 and 20,162

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Solution

The fourth proportional to 63,938, 95,907 and 20,162 is: 30,243

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,938 : 95,907 = 20,162 : x
  2. Step 2: Convert to fraction form
    63,938/95,907 = 20,162/x
  3. Step 3: Cross multiply
    63,938x = 95,907 × 20,162
  4. Step 4: Simplify right side
    63,938x = 1,933,676,934
  5. Step 5: Solve for x
    x = 1,933,676,934/63,938
  6. Step 6: Final answer
    x = 30,243

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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.