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Finding the Third Proportional to 8,730 and 19,089

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Solution

The third proportional to 8,730 and 19,089 is: 41,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,730 : 19,089 = 19,089 : x
  2. Step 2: Convert to fraction form
    8,730/19,089 = 19,089/x
  3. Step 3: Cross multiply
    8,730x = 19,089 × 19,089
  4. Step 4: Simplify right side
    8,730x = 364,389,921
  5. Step 5: Solve for x
    x = 364,389,921/8,730
  6. Step 6: Final answer
    x = 41,739.97

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.