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Finding the Third Proportional to 12,887 and 27,970

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Solution

The third proportional to 12,887 and 27,970 is: 60,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887 : 27,970 = 27,970 : x
  2. Step 2: Convert to fraction form
    12,887/27,970 = 27,970/x
  3. Step 3: Cross multiply
    12,887x = 27,970 × 27,970
  4. Step 4: Simplify right side
    12,887x = 782,320,900
  5. Step 5: Solve for x
    x = 782,320,900/12,887
  6. Step 6: Final answer
    x = 60,706.21

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.