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Finding the Third Proportional to 18,777.38 and 29,243.81

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Solution

The third proportional to 18,777.38 and 29,243.81 is: 45,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.38 : 29,243.81 = 29,243.81 : x
  2. Step 2: Convert to fraction form
    18,777.38/29,243.81 = 29,243.81/x
  3. Step 3: Cross multiply
    18,777.38x = 29,243.81 × 29,243.81
  4. Step 4: Simplify right side
    18,777.38x = 855,200,569.54
  5. Step 5: Solve for x
    x = 855,200,569.54/18,777.38
  6. Step 6: Final answer
    x = 45,544.20

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.