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Finding the Third Proportional to 18,668 and 28,904

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Solution

The third proportional to 18,668 and 28,904 is: 44,752.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668 : 28,904 = 28,904 : x
  2. Step 2: Convert to fraction form
    18,668/28,904 = 28,904/x
  3. Step 3: Cross multiply
    18,668x = 28,904 × 28,904
  4. Step 4: Simplify right side
    18,668x = 835,441,216
  5. Step 5: Solve for x
    x = 835,441,216/18,668
  6. Step 6: Final answer
    x = 44,752.58

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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.