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Finding the Third Proportional to 17,920 and 36,368

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Solution

The third proportional to 17,920 and 36,368 is: 73,807.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920 : 36,368 = 36,368 : x
  2. Step 2: Convert to fraction form
    17,920/36,368 = 36,368/x
  3. Step 3: Cross multiply
    17,920x = 36,368 × 36,368
  4. Step 4: Simplify right side
    17,920x = 1,322,631,424
  5. Step 5: Solve for x
    x = 1,322,631,424/17,920
  6. Step 6: Final answer
    x = 73,807.56

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.