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Finding the Third Proportional to 20,427 and 29,749.50

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Solution

The third proportional to 20,427 and 29,749.50 is: 43,326.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,427 : 29,749.50 = 29,749.50 : x
  2. Step 2: Convert to fraction form
    20,427/29,749.50 = 29,749.50/x
  3. Step 3: Cross multiply
    20,427x = 29,749.50 × 29,749.50
  4. Step 4: Simplify right side
    20,427x = 885,032,750.25
  5. Step 5: Solve for x
    x = 885,032,750.25/20,427
  6. Step 6: Final answer
    x = 43,326.61

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.