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Finding the Third Proportional to 21,176.06 and 28,230.91

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Solution

The third proportional to 21,176.06 and 28,230.91 is: 37,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176.06 : 28,230.91 = 28,230.91 : x
  2. Step 2: Convert to fraction form
    21,176.06/28,230.91 = 28,230.91/x
  3. Step 3: Cross multiply
    21,176.06x = 28,230.91 × 28,230.91
  4. Step 4: Simplify right side
    21,176.06x = 796,984,508.80
  5. Step 5: Solve for x
    x = 796,984,508.80/21,176.06
  6. Step 6: Final answer
    x = 37,636.10

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.