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Finding the Third Proportional to 18,119.53 and 38,918.53

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Solution

The third proportional to 18,119.53 and 38,918.53 is: 83,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.53 : 38,918.53 = 38,918.53 : x
  2. Step 2: Convert to fraction form
    18,119.53/38,918.53 = 38,918.53/x
  3. Step 3: Cross multiply
    18,119.53x = 38,918.53 × 38,918.53
  4. Step 4: Simplify right side
    18,119.53x = 1,514,652,074.66
  5. Step 5: Solve for x
    x = 1,514,652,074.66/18,119.53
  6. Step 6: Final answer
    x = 83,592.23

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.