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Finding the Third Proportional to 18,538.75 and 39,993.25

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Solution

The third proportional to 18,538.75 and 39,993.25 is: 86,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.75 : 39,993.25 = 39,993.25 : x
  2. Step 2: Convert to fraction form
    18,538.75/39,993.25 = 39,993.25/x
  3. Step 3: Cross multiply
    18,538.75x = 39,993.25 × 39,993.25
  4. Step 4: Simplify right side
    18,538.75x = 1,599,460,045.56
  5. Step 5: Solve for x
    x = 1,599,460,045.56/18,538.75
  6. Step 6: Final answer
    x = 86,276.59

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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.