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Finding the Third Proportional to 18,708 and 28,959

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Solution

The third proportional to 18,708 and 28,959 is: 44,827.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708 : 28,959 = 28,959 : x
  2. Step 2: Convert to fraction form
    18,708/28,959 = 28,959/x
  3. Step 3: Cross multiply
    18,708x = 28,959 × 28,959
  4. Step 4: Simplify right side
    18,708x = 838,623,681
  5. Step 5: Solve for x
    x = 838,623,681/18,708
  6. Step 6: Final answer
    x = 44,827.01

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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.