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Finding the Third Proportional to 17,818 and 27,758

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Solution

The third proportional to 17,818 and 27,758 is: 43,243.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,818 : 27,758 = 27,758 : x
  2. Step 2: Convert to fraction form
    17,818/27,758 = 27,758/x
  3. Step 3: Cross multiply
    17,818x = 27,758 × 27,758
  4. Step 4: Simplify right side
    17,818x = 770,506,564
  5. Step 5: Solve for x
    x = 770,506,564/17,818
  6. Step 6: Final answer
    x = 43,243.16

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.