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Finding the Third Proportional to 18,278 and 28,401

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Solution

The third proportional to 18,278 and 28,401 is: 44,130.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,278 : 28,401 = 28,401 : x
  2. Step 2: Convert to fraction form
    18,278/28,401 = 28,401/x
  3. Step 3: Cross multiply
    18,278x = 28,401 × 28,401
  4. Step 4: Simplify right side
    18,278x = 806,616,801
  5. Step 5: Solve for x
    x = 806,616,801/18,278
  6. Step 6: Final answer
    x = 44,130.47

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.