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Finding the Third Proportional to 19,213.31 and 39,383.44

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Solution

The third proportional to 19,213.31 and 39,383.44 is: 80,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,213.31 : 39,383.44 = 39,383.44 : x
  2. Step 2: Convert to fraction form
    19,213.31/39,383.44 = 39,383.44/x
  3. Step 3: Cross multiply
    19,213.31x = 39,383.44 × 39,383.44
  4. Step 4: Simplify right side
    19,213.31x = 1,551,055,149.32
  5. Step 5: Solve for x
    x = 1,551,055,149.32/19,213.31
  6. Step 6: Final answer
    x = 80,728.15

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.