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Finding the Third Proportional to 18,373 and 39,653

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Solution

The third proportional to 18,373 and 39,653 is: 85,579.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,373 : 39,653 = 39,653 : x
  2. Step 2: Convert to fraction form
    18,373/39,653 = 39,653/x
  3. Step 3: Cross multiply
    18,373x = 39,653 × 39,653
  4. Step 4: Simplify right side
    18,373x = 1,572,360,409
  5. Step 5: Solve for x
    x = 1,572,360,409/18,373
  6. Step 6: Final answer
    x = 85,579.95

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.