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Finding the Third Proportional to 18,480 and 32,856

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Solution

The third proportional to 18,480 and 32,856 is: 58,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480 : 32,856 = 32,856 : x
  2. Step 2: Convert to fraction form
    18,480/32,856 = 32,856/x
  3. Step 3: Cross multiply
    18,480x = 32,856 × 32,856
  4. Step 4: Simplify right side
    18,480x = 1,079,516,736
  5. Step 5: Solve for x
    x = 1,079,516,736/18,480
  6. Step 6: Final answer
    x = 58,415.41

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.