Home / 20,151.16-27,808.03-11,198.23

Finding the Fourth Proportional to 20,151.16, 27,808.03 and 11,198.23

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Solution

The fourth proportional to 20,151.16, 27,808.03 and 11,198.23 is: 15,453.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.16 : 27,808.03 = 11,198.23 : x
  2. Step 2: Convert to fraction form
    20,151.16/27,808.03 = 11,198.23/x
  3. Step 3: Cross multiply
    20,151.16x = 27,808.03 × 11,198.23
  4. Step 4: Simplify right side
    20,151.16x = 311,400,715.79
  5. Step 5: Solve for x
    x = 311,400,715.79/20,151.16
  6. Step 6: Final answer
    x = 15,453.24

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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.