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Finding the Third Proportional to 21,638 and 44,920

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Solution

The third proportional to 21,638 and 44,920 is: 93,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638 : 44,920 = 44,920 : x
  2. Step 2: Convert to fraction form
    21,638/44,920 = 44,920/x
  3. Step 3: Cross multiply
    21,638x = 44,920 × 44,920
  4. Step 4: Simplify right side
    21,638x = 2,017,806,400
  5. Step 5: Solve for x
    x = 2,017,806,400/21,638
  6. Step 6: Final answer
    x = 93,252.91

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.