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Finding the Third Proportional to 18,673 and 28,915

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Solution

The third proportional to 18,673 and 28,915 is: 44,774.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673 : 28,915 = 28,915 : x
  2. Step 2: Convert to fraction form
    18,673/28,915 = 28,915/x
  3. Step 3: Cross multiply
    18,673x = 28,915 × 28,915
  4. Step 4: Simplify right side
    18,673x = 836,077,225
  5. Step 5: Solve for x
    x = 836,077,225/18,673
  6. Step 6: Final answer
    x = 44,774.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.