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Finding the Third Proportional to 15,918 and 33,578.25

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Solution

The third proportional to 15,918 and 33,578.25 is: 70,831.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918 : 33,578.25 = 33,578.25 : x
  2. Step 2: Convert to fraction form
    15,918/33,578.25 = 33,578.25/x
  3. Step 3: Cross multiply
    15,918x = 33,578.25 × 33,578.25
  4. Step 4: Simplify right side
    15,918x = 1,127,498,873.06
  5. Step 5: Solve for x
    x = 1,127,498,873.06/15,918
  6. Step 6: Final answer
    x = 70,831.69

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.