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Finding the Third Proportional to 17,040.38 and 18,528.75

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Solution

The third proportional to 17,040.38 and 18,528.75 is: 20,147.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,040.38 : 18,528.75 = 18,528.75 : x
  2. Step 2: Convert to fraction form
    17,040.38/18,528.75 = 18,528.75/x
  3. Step 3: Cross multiply
    17,040.38x = 18,528.75 × 18,528.75
  4. Step 4: Simplify right side
    17,040.38x = 343,314,576.56
  5. Step 5: Solve for x
    x = 343,314,576.56/17,040.38
  6. Step 6: Final answer
    x = 20,147.13

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.