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Finding the Third Proportional to 8,972 and 20,807

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Solution

The third proportional to 8,972 and 20,807 is: 48,253.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972 : 20,807 = 20,807 : x
  2. Step 2: Convert to fraction form
    8,972/20,807 = 20,807/x
  3. Step 3: Cross multiply
    8,972x = 20,807 × 20,807
  4. Step 4: Simplify right side
    8,972x = 432,931,249
  5. Step 5: Solve for x
    x = 432,931,249/8,972
  6. Step 6: Final answer
    x = 48,253.59

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Why These Related Problems?

These problems maintain the same ratio (2.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.