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Finding the Third Proportional to 18,688 and 27,764

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Solution

The third proportional to 18,688 and 27,764 is: 41,247.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688 : 27,764 = 27,764 : x
  2. Step 2: Convert to fraction form
    18,688/27,764 = 27,764/x
  3. Step 3: Cross multiply
    18,688x = 27,764 × 27,764
  4. Step 4: Simplify right side
    18,688x = 770,839,696
  5. Step 5: Solve for x
    x = 770,839,696/18,688
  6. Step 6: Final answer
    x = 41,247.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.