Home / 20,083.42-27,715.12-11,132.27

Finding the Fourth Proportional to 20,083.42, 27,715.12 and 11,132.27

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Solution

The fourth proportional to 20,083.42, 27,715.12 and 11,132.27 is: 15,362.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.42 : 27,715.12 = 11,132.27 : x
  2. Step 2: Convert to fraction form
    20,083.42/27,715.12 = 11,132.27/x
  3. Step 3: Cross multiply
    20,083.42x = 27,715.12 × 11,132.27
  4. Step 4: Simplify right side
    20,083.42x = 308,532,198.92
  5. Step 5: Solve for x
    x = 308,532,198.92/20,083.42
  6. Step 6: Final answer
    x = 15,362.53

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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.