Home / 18,571.32-27,851.46-5,419.56

Finding the Fourth Proportional to 18,571.32, 27,851.46 and 5,419.56

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Solution

The fourth proportional to 18,571.32, 27,851.46 and 5,419.56 is: 8,127.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.32 : 27,851.46 = 5,419.56 : x
  2. Step 2: Convert to fraction form
    18,571.32/27,851.46 = 5,419.56/x
  3. Step 3: Cross multiply
    18,571.32x = 27,851.46 × 5,419.56
  4. Step 4: Simplify right side
    18,571.32x = 150,942,658.56
  5. Step 5: Solve for x
    x = 150,942,658.56/18,571.32
  6. Step 6: Final answer
    x = 8,127.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.