Home / 20,163.36-27,826.07-11,211.24

Finding the Fourth Proportional to 20,163.36, 27,826.07 and 11,211.24

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Solution

The fourth proportional to 20,163.36, 27,826.07 and 11,211.24 is: 15,471.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.36 : 27,826.07 = 11,211.24 : x
  2. Step 2: Convert to fraction form
    20,163.36/27,826.07 = 11,211.24/x
  3. Step 3: Cross multiply
    20,163.36x = 27,826.07 × 11,211.24
  4. Step 4: Simplify right side
    20,163.36x = 311,964,749.03
  5. Step 5: Solve for x
    x = 311,964,749.03/20,163.36
  6. Step 6: Final answer
    x = 15,471.86

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1.5x scale

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.