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Finding the Third Proportional to 18,559 and 38,030

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Solution

The third proportional to 18,559 and 38,030 is: 77,928.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559 : 38,030 = 38,030 : x
  2. Step 2: Convert to fraction form
    18,559/38,030 = 38,030/x
  3. Step 3: Cross multiply
    18,559x = 38,030 × 38,030
  4. Step 4: Simplify right side
    18,559x = 1,446,280,900
  5. Step 5: Solve for x
    x = 1,446,280,900/18,559
  6. Step 6: Final answer
    x = 77,928.82

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.