Home / 20,163.78-27,824.43-11,210.73

Finding the Fourth Proportional to 20,163.78, 27,824.43 and 11,210.73

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Solution

The fourth proportional to 20,163.78, 27,824.43 and 11,210.73 is: 15,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.78 : 27,824.43 = 11,210.73 : x
  2. Step 2: Convert to fraction form
    20,163.78/27,824.43 = 11,210.73/x
  3. Step 3: Cross multiply
    20,163.78x = 27,824.43 × 11,210.73
  4. Step 4: Simplify right side
    20,163.78x = 311,932,172.13
  5. Step 5: Solve for x
    x = 311,932,172.13/20,163.78
  6. Step 6: Final answer
    x = 15,469.93

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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.