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Finding the Third Proportional to 13,146 and 21,351

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Solution

The third proportional to 13,146 and 21,351 is: 34,677.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146 : 21,351 = 21,351 : x
  2. Step 2: Convert to fraction form
    13,146/21,351 = 21,351/x
  3. Step 3: Cross multiply
    13,146x = 21,351 × 21,351
  4. Step 4: Simplify right side
    13,146x = 455,865,201
  5. Step 5: Solve for x
    x = 455,865,201/13,146
  6. Step 6: Final answer
    x = 34,677.10

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.