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Finding the Third Proportional to 12,490 and 27,236

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Solution

The third proportional to 12,490 and 27,236 is: 59,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490 : 27,236 = 27,236 : x
  2. Step 2: Convert to fraction form
    12,490/27,236 = 27,236/x
  3. Step 3: Cross multiply
    12,490x = 27,236 × 27,236
  4. Step 4: Simplify right side
    12,490x = 741,799,696
  5. Step 5: Solve for x
    x = 741,799,696/12,490
  6. Step 6: Final answer
    x = 59,391.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.