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Finding the Third Proportional to 20,013.75 and 28,603.13

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Solution

The third proportional to 20,013.75 and 28,603.13 is: 40,878.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,013.75 : 28,603.13 = 28,603.13 : x
  2. Step 2: Convert to fraction form
    20,013.75/28,603.13 = 28,603.13/x
  3. Step 3: Cross multiply
    20,013.75x = 28,603.13 × 28,603.13
  4. Step 4: Simplify right side
    20,013.75x = 818,138,759.77
  5. Step 5: Solve for x
    x = 818,138,759.77/20,013.75
  6. Step 6: Final answer
    x = 40,878.83

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.