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Finding the Third Proportional to 18,693 and 28,628

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Solution

The third proportional to 18,693 and 28,628 is: 43,843.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693 : 28,628 = 28,628 : x
  2. Step 2: Convert to fraction form
    18,693/28,628 = 28,628/x
  3. Step 3: Cross multiply
    18,693x = 28,628 × 28,628
  4. Step 4: Simplify right side
    18,693x = 819,562,384
  5. Step 5: Solve for x
    x = 819,562,384/18,693
  6. Step 6: Final answer
    x = 43,843.28

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.