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Finding the Third Proportional to 18,048 and 21,264

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Solution

The third proportional to 18,048 and 21,264 is: 25,053.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,048 : 21,264 = 21,264 : x
  2. Step 2: Convert to fraction form
    18,048/21,264 = 21,264/x
  3. Step 3: Cross multiply
    18,048x = 21,264 × 21,264
  4. Step 4: Simplify right side
    18,048x = 452,157,696
  5. Step 5: Solve for x
    x = 452,157,696/18,048
  6. Step 6: Final answer
    x = 25,053.06

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.