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Finding the Third Proportional to 18,110 and 27,869

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Solution

The third proportional to 18,110 and 27,869 is: 42,886.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110 : 27,869 = 27,869 : x
  2. Step 2: Convert to fraction form
    18,110/27,869 = 27,869/x
  3. Step 3: Cross multiply
    18,110x = 27,869 × 27,869
  4. Step 4: Simplify right side
    18,110x = 776,681,161
  5. Step 5: Solve for x
    x = 776,681,161/18,110
  6. Step 6: Final answer
    x = 42,886.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.