Home / 20,169.14-27,834.44-11,216.81

Finding the Fourth Proportional to 20,169.14, 27,834.44 and 11,216.81

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Solution

The fourth proportional to 20,169.14, 27,834.44 and 11,216.81 is: 15,479.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169.14 : 27,834.44 = 11,216.81 : x
  2. Step 2: Convert to fraction form
    20,169.14/27,834.44 = 11,216.81/x
  3. Step 3: Cross multiply
    20,169.14x = 27,834.44 × 11,216.81
  4. Step 4: Simplify right side
    20,169.14x = 312,213,638.44
  5. Step 5: Solve for x
    x = 312,213,638.44/20,169.14
  6. Step 6: Final answer
    x = 15,479.77

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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.