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Finding the Third Proportional to 20,908.92 and 29,806.42

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Solution

The third proportional to 20,908.92 and 29,806.42 is: 42,490.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.92 : 29,806.42 = 29,806.42 : x
  2. Step 2: Convert to fraction form
    20,908.92/29,806.42 = 29,806.42/x
  3. Step 3: Cross multiply
    20,908.92x = 29,806.42 × 29,806.42
  4. Step 4: Simplify right side
    20,908.92x = 888,422,552.13
  5. Step 5: Solve for x
    x = 888,422,552.13/20,908.92
  6. Step 6: Final answer
    x = 42,490.13

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.