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Finding the Third Proportional to 21,895 and 47,879.38

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Solution

The third proportional to 21,895 and 47,879.38 is: 104,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895 : 47,879.38 = 47,879.38 : x
  2. Step 2: Convert to fraction form
    21,895/47,879.38 = 47,879.38/x
  3. Step 3: Cross multiply
    21,895x = 47,879.38 × 47,879.38
  4. Step 4: Simplify right side
    21,895x = 2,292,434,550.39
  5. Step 5: Solve for x
    x = 2,292,434,550.39/21,895
  6. Step 6: Final answer
    x = 104,701.28

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.