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Finding the Third Proportional to 21,645 and 33,162.75

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Solution

The third proportional to 21,645 and 33,162.75 is: 50,809.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,645 : 33,162.75 = 33,162.75 : x
  2. Step 2: Convert to fraction form
    21,645/33,162.75 = 33,162.75/x
  3. Step 3: Cross multiply
    21,645x = 33,162.75 × 33,162.75
  4. Step 4: Simplify right side
    21,645x = 1,099,767,987.56
  5. Step 5: Solve for x
    x = 1,099,767,987.56/21,645
  6. Step 6: Final answer
    x = 50,809.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.