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Finding the Third Proportional to 13,128 and 28,317

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Solution

The third proportional to 13,128 and 28,317 is: 61,079.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128 : 28,317 = 28,317 : x
  2. Step 2: Convert to fraction form
    13,128/28,317 = 28,317/x
  3. Step 3: Cross multiply
    13,128x = 28,317 × 28,317
  4. Step 4: Simplify right side
    13,128x = 801,852,489
  5. Step 5: Solve for x
    x = 801,852,489/13,128
  6. Step 6: Final answer
    x = 61,079.56

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.