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Finding the Third Proportional to 21,603 and 32,310

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Solution

The third proportional to 21,603 and 32,310 is: 48,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,603 : 32,310 = 32,310 : x
  2. Step 2: Convert to fraction form
    21,603/32,310 = 32,310/x
  3. Step 3: Cross multiply
    21,603x = 32,310 × 32,310
  4. Step 4: Simplify right side
    21,603x = 1,043,936,100
  5. Step 5: Solve for x
    x = 1,043,936,100/21,603
  6. Step 6: Final answer
    x = 48,323.66

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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.