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Finding the Third Proportional to 18,873 and 38,938.50

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Solution

The third proportional to 18,873 and 38,938.50 is: 80,337.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,873 : 38,938.50 = 38,938.50 : x
  2. Step 2: Convert to fraction form
    18,873/38,938.50 = 38,938.50/x
  3. Step 3: Cross multiply
    18,873x = 38,938.50 × 38,938.50
  4. Step 4: Simplify right side
    18,873x = 1,516,206,782.25
  5. Step 5: Solve for x
    x = 1,516,206,782.25/18,873
  6. Step 6: Final answer
    x = 80,337.35

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.