Home / 20,116.32-27,759.22-11,163.83

Finding the Fourth Proportional to 20,116.32, 27,759.22 and 11,163.83

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Solution

The fourth proportional to 20,116.32, 27,759.22 and 11,163.83 is: 15,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.32 : 27,759.22 = 11,163.83 : x
  2. Step 2: Convert to fraction form
    20,116.32/27,759.22 = 11,163.83/x
  3. Step 3: Cross multiply
    20,116.32x = 27,759.22 × 11,163.83
  4. Step 4: Simplify right side
    20,116.32x = 309,899,109.10
  5. Step 5: Solve for x
    x = 309,899,109.10/20,116.32
  6. Step 6: Final answer
    x = 15,405.36

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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.