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Finding the Third Proportional to 20,334 and 28,485

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Solution

The third proportional to 20,334 and 28,485 is: 39,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,334 : 28,485 = 28,485 : x
  2. Step 2: Convert to fraction form
    20,334/28,485 = 28,485/x
  3. Step 3: Cross multiply
    20,334x = 28,485 × 28,485
  4. Step 4: Simplify right side
    20,334x = 811,395,225
  5. Step 5: Solve for x
    x = 811,395,225/20,334
  6. Step 6: Final answer
    x = 39,903.37

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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.