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Finding the Third Proportional to 21,935 and 29,986

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Solution

The third proportional to 21,935 and 29,986 is: 40,992.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935 : 29,986 = 29,986 : x
  2. Step 2: Convert to fraction form
    21,935/29,986 = 29,986/x
  3. Step 3: Cross multiply
    21,935x = 29,986 × 29,986
  4. Step 4: Simplify right side
    21,935x = 899,160,196
  5. Step 5: Solve for x
    x = 899,160,196/21,935
  6. Step 6: Final answer
    x = 40,992.03

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.