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Finding the Third Proportional to 6,920 and 16,742

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Solution

The third proportional to 6,920 and 16,742 is: 40,504.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920 : 16,742 = 16,742 : x
  2. Step 2: Convert to fraction form
    6,920/16,742 = 16,742/x
  3. Step 3: Cross multiply
    6,920x = 16,742 × 16,742
  4. Step 4: Simplify right side
    6,920x = 280,294,564
  5. Step 5: Solve for x
    x = 280,294,564/6,920
  6. Step 6: Final answer
    x = 40,504.99

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.