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Finding the Third Proportional to 12,888 and 27,879.75

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Solution

The third proportional to 12,888 and 27,879.75 is: 60,310.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,888 : 27,879.75 = 27,879.75 : x
  2. Step 2: Convert to fraction form
    12,888/27,879.75 = 27,879.75/x
  3. Step 3: Cross multiply
    12,888x = 27,879.75 × 27,879.75
  4. Step 4: Simplify right side
    12,888x = 777,280,460.06
  5. Step 5: Solve for x
    x = 777,280,460.06/12,888
  6. Step 6: Final answer
    x = 60,310.40

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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.