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Finding the Third Proportional to 19,040 and 27,872

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Solution

The third proportional to 19,040 and 27,872 is: 40,800.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,040 : 27,872 = 27,872 : x
  2. Step 2: Convert to fraction form
    19,040/27,872 = 27,872/x
  3. Step 3: Cross multiply
    19,040x = 27,872 × 27,872
  4. Step 4: Simplify right side
    19,040x = 776,848,384
  5. Step 5: Solve for x
    x = 776,848,384/19,040
  6. Step 6: Final answer
    x = 40,800.86

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.