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Finding the Third Proportional to 18,116 and 28,668

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Solution

The third proportional to 18,116 and 28,668 is: 45,366.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,116 : 28,668 = 28,668 : x
  2. Step 2: Convert to fraction form
    18,116/28,668 = 28,668/x
  3. Step 3: Cross multiply
    18,116x = 28,668 × 28,668
  4. Step 4: Simplify right side
    18,116x = 821,854,224
  5. Step 5: Solve for x
    x = 821,854,224/18,116
  6. Step 6: Final answer
    x = 45,366.21

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.