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Finding the Third Proportional to 18,158 and 28,058

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Solution

The third proportional to 18,158 and 28,058 is: 43,355.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158 : 28,058 = 28,058 : x
  2. Step 2: Convert to fraction form
    18,158/28,058 = 28,058/x
  3. Step 3: Cross multiply
    18,158x = 28,058 × 28,058
  4. Step 4: Simplify right side
    18,158x = 787,251,364
  5. Step 5: Solve for x
    x = 787,251,364/18,158
  6. Step 6: Final answer
    x = 43,355.62

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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.