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Finding the Fourth Proportional to 44,620, 66,930 and 16,918

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Solution

The fourth proportional to 44,620, 66,930 and 16,918 is: 25,377

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,620 : 66,930 = 16,918 : x
  2. Step 2: Convert to fraction form
    44,620/66,930 = 16,918/x
  3. Step 3: Cross multiply
    44,620x = 66,930 × 16,918
  4. Step 4: Simplify right side
    44,620x = 1,132,321,740
  5. Step 5: Solve for x
    x = 1,132,321,740/44,620
  6. Step 6: Final answer
    x = 25,377

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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.