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Finding the Third Proportional to 8,642 and 20,832

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Solution

The third proportional to 8,642 and 20,832 is: 50,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642 : 20,832 = 20,832 : x
  2. Step 2: Convert to fraction form
    8,642/20,832 = 20,832/x
  3. Step 3: Cross multiply
    8,642x = 20,832 × 20,832
  4. Step 4: Simplify right side
    8,642x = 433,972,224
  5. Step 5: Solve for x
    x = 433,972,224/8,642
  6. Step 6: Final answer
    x = 50,216.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.