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Finding the Third Proportional to 10,820 and 17,202

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Solution

The third proportional to 10,820 and 17,202 is: 27,348.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820 : 17,202 = 17,202 : x
  2. Step 2: Convert to fraction form
    10,820/17,202 = 17,202/x
  3. Step 3: Cross multiply
    10,820x = 17,202 × 17,202
  4. Step 4: Simplify right side
    10,820x = 295,908,804
  5. Step 5: Solve for x
    x = 295,908,804/10,820
  6. Step 6: Final answer
    x = 27,348.32

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.