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Finding the Third Proportional to 20,316 and 30,384

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Solution

The third proportional to 20,316 and 30,384 is: 45,441.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316 : 30,384 = 30,384 : x
  2. Step 2: Convert to fraction form
    20,316/30,384 = 30,384/x
  3. Step 3: Cross multiply
    20,316x = 30,384 × 30,384
  4. Step 4: Simplify right side
    20,316x = 923,187,456
  5. Step 5: Solve for x
    x = 923,187,456/20,316
  6. Step 6: Final answer
    x = 45,441.40

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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.