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Finding the Third Proportional to 18,915 and 26,508.75

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Solution

The third proportional to 18,915 and 26,508.75 is: 37,151.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,915 : 26,508.75 = 26,508.75 : x
  2. Step 2: Convert to fraction form
    18,915/26,508.75 = 26,508.75/x
  3. Step 3: Cross multiply
    18,915x = 26,508.75 × 26,508.75
  4. Step 4: Simplify right side
    18,915x = 702,713,826.56
  5. Step 5: Solve for x
    x = 702,713,826.56/18,915
  6. Step 6: Final answer
    x = 37,151.14

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.