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Finding the Third Proportional to 13,694.63 and 20,508.19

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Solution

The third proportional to 13,694.63 and 20,508.19 is: 30,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.63 : 20,508.19 = 20,508.19 : x
  2. Step 2: Convert to fraction form
    13,694.63/20,508.19 = 20,508.19/x
  3. Step 3: Cross multiply
    13,694.63x = 20,508.19 × 20,508.19
  4. Step 4: Simplify right side
    13,694.63x = 420,585,754.54
  5. Step 5: Solve for x
    x = 420,585,754.54/13,694.63
  6. Step 6: Final answer
    x = 30,711.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.