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Finding the Third Proportional to 20,858 and 32,312

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Solution

The third proportional to 20,858 and 32,312 is: 50,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,858 : 32,312 = 32,312 : x
  2. Step 2: Convert to fraction form
    20,858/32,312 = 32,312/x
  3. Step 3: Cross multiply
    20,858x = 32,312 × 32,312
  4. Step 4: Simplify right side
    20,858x = 1,044,065,344
  5. Step 5: Solve for x
    x = 1,044,065,344/20,858
  6. Step 6: Final answer
    x = 50,055.87

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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.