Home / 20,163.18-27,825.09-11,210.15

Finding the Fourth Proportional to 20,163.18, 27,825.09 and 11,210.15

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Solution

The fourth proportional to 20,163.18, 27,825.09 and 11,210.15 is: 15,469.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,163.18 : 27,825.09 = 11,210.15 : x
  2. Step 2: Convert to fraction form
    20,163.18/27,825.09 = 11,210.15/x
  3. Step 3: Cross multiply
    20,163.18x = 27,825.09 × 11,210.15
  4. Step 4: Simplify right side
    20,163.18x = 311,923,398.26
  5. Step 5: Solve for x
    x = 311,923,398.26/20,163.18
  6. Step 6: Final answer
    x = 15,469.95

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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.