Home / 21,331,245.21-29,436,908.49-11,541,474.51

Finding the Fourth Proportional to 21,331,245.21, 29,436,908.49 and 11,541,474.51

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Solution

The fourth proportional to 21,331,245.21, 29,436,908.49 and 11,541,474.51 is: 15,927,121.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331,245.21 : 29,436,908.49 = 11,541,474.51 : x
  2. Step 2: Convert to fraction form
    21,331,245.21/29,436,908.49 = 11,541,474.51/x
  3. Step 3: Cross multiply
    21,331,245.21x = 29,436,908.49 × 11,541,474.51
  4. Step 4: Simplify right side
    21,331,245.21x = 339,745,328,990,537.56
  5. Step 5: Solve for x
    x = 339,745,328,990,537.56/21,331,245.21
  6. Step 6: Final answer
    x = 15,927,121.26

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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.