Home / 20,795.11-28,694.59-11,841.37

Finding the Fourth Proportional to 20,795.11, 28,694.59 and 11,841.37

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Solution

The fourth proportional to 20,795.11, 28,694.59 and 11,841.37 is: 16,339.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.11 : 28,694.59 = 11,841.37 : x
  2. Step 2: Convert to fraction form
    20,795.11/28,694.59 = 11,841.37/x
  3. Step 3: Cross multiply
    20,795.11x = 28,694.59 × 11,841.37
  4. Step 4: Simplify right side
    20,795.11x = 339,783,257.19
  5. Step 5: Solve for x
    x = 339,783,257.19/20,795.11
  6. Step 6: Final answer
    x = 16,339.57

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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.