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Finding the Third Proportional to 18,858.23 and 39,266.44

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Solution

The third proportional to 18,858.23 and 39,266.44 is: 81,760.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,858.23 : 39,266.44 = 39,266.44 : x
  2. Step 2: Convert to fraction form
    18,858.23/39,266.44 = 39,266.44/x
  3. Step 3: Cross multiply
    18,858.23x = 39,266.44 × 39,266.44
  4. Step 4: Simplify right side
    18,858.23x = 1,541,853,113.94
  5. Step 5: Solve for x
    x = 1,541,853,113.94/18,858.23
  6. Step 6: Final answer
    x = 81,760.21

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.