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Finding the Third Proportional to 16,828 and 36,620

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Solution

The third proportional to 16,828 and 36,620 is: 79,690.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,828 : 36,620 = 36,620 : x
  2. Step 2: Convert to fraction form
    16,828/36,620 = 36,620/x
  3. Step 3: Cross multiply
    16,828x = 36,620 × 36,620
  4. Step 4: Simplify right side
    16,828x = 1,341,024,400
  5. Step 5: Solve for x
    x = 1,341,024,400/16,828
  6. Step 6: Final answer
    x = 79,690.06

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.