Home / 21,320,351.92-29,422,086.87-11,530,793.44

Finding the Fourth Proportional to 21,320,351.92, 29,422,086.87 and 11,530,793.44

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Solution

The fourth proportional to 21,320,351.92, 29,422,086.87 and 11,530,793.44 is: 15,912,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320,351.92 : 29,422,086.87 = 11,530,793.44 : x
  2. Step 2: Convert to fraction form
    21,320,351.92/29,422,086.87 = 11,530,793.44/x
  3. Step 3: Cross multiply
    21,320,351.92x = 29,422,086.87 × 11,530,793.44
  4. Step 4: Simplify right side
    21,320,351.92x = 339,260,006,271,706.12
  5. Step 5: Solve for x
    x = 339,260,006,271,706.12/21,320,351.92
  6. Step 6: Final answer
    x = 15,912,495.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.