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Finding the Third Proportional to 20,392 and 43,235

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Solution

The third proportional to 20,392 and 43,235 is: 91,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392 : 43,235 = 43,235 : x
  2. Step 2: Convert to fraction form
    20,392/43,235 = 43,235/x
  3. Step 3: Cross multiply
    20,392x = 43,235 × 43,235
  4. Step 4: Simplify right side
    20,392x = 1,869,265,225
  5. Step 5: Solve for x
    x = 1,869,265,225/20,392
  6. Step 6: Final answer
    x = 91,666.60

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.