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Finding the Third Proportional to 13,431.75 and 27,543

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Solution

The third proportional to 13,431.75 and 27,543 is: 56,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431.75 : 27,543 = 27,543 : x
  2. Step 2: Convert to fraction form
    13,431.75/27,543 = 27,543/x
  3. Step 3: Cross multiply
    13,431.75x = 27,543 × 27,543
  4. Step 4: Simplify right side
    13,431.75x = 758,616,849
  5. Step 5: Solve for x
    x = 758,616,849/13,431.75
  6. Step 6: Final answer
    x = 56,479.38

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.