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Finding the Third Proportional to 18,117.56 and 38,913.56

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Solution

The third proportional to 18,117.56 and 38,913.56 is: 83,579.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.56 : 38,913.56 = 38,913.56 : x
  2. Step 2: Convert to fraction form
    18,117.56/38,913.56 = 38,913.56/x
  3. Step 3: Cross multiply
    18,117.56x = 38,913.56 × 38,913.56
  4. Step 4: Simplify right side
    18,117.56x = 1,514,265,346.44
  5. Step 5: Solve for x
    x = 1,514,265,346.44/18,117.56
  6. Step 6: Final answer
    x = 83,579.97

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.