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Finding the Third Proportional to 21,999.38 and 29,890.13

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Solution

The third proportional to 21,999.38 and 29,890.13 is: 40,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.38 : 29,890.13 = 29,890.13 : x
  2. Step 2: Convert to fraction form
    21,999.38/29,890.13 = 29,890.13/x
  3. Step 3: Cross multiply
    21,999.38x = 29,890.13 × 29,890.13
  4. Step 4: Simplify right side
    21,999.38x = 893,419,572.52
  5. Step 5: Solve for x
    x = 893,419,572.52/21,999.38
  6. Step 6: Final answer
    x = 40,611.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.