Home / 20,147.05-27,803.42-11,194.93

Finding the Fourth Proportional to 20,147.05, 27,803.42 and 11,194.93

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Solution

The fourth proportional to 20,147.05, 27,803.42 and 11,194.93 is: 15,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,147.05 : 27,803.42 = 11,194.93 : x
  2. Step 2: Convert to fraction form
    20,147.05/27,803.42 = 11,194.93/x
  3. Step 3: Cross multiply
    20,147.05x = 27,803.42 × 11,194.93
  4. Step 4: Simplify right side
    20,147.05x = 311,257,340.66
  5. Step 5: Solve for x
    x = 311,257,340.66/20,147.05
  6. Step 6: Final answer
    x = 15,449.28

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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.