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Finding the Third Proportional to 28,263 and 43,788

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Solution

The third proportional to 28,263 and 43,788 is: 67,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,263 : 43,788 = 43,788 : x
  2. Step 2: Convert to fraction form
    28,263/43,788 = 43,788/x
  3. Step 3: Cross multiply
    28,263x = 43,788 × 43,788
  4. Step 4: Simplify right side
    28,263x = 1,917,388,944
  5. Step 5: Solve for x
    x = 1,917,388,944/28,263
  6. Step 6: Final answer
    x = 67,840.96

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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.