Home / 20,195.21-27,880.33-14,163.97

Finding the Fourth Proportional to 20,195.21, 27,880.33 and 14,163.97

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Solution

The fourth proportional to 20,195.21, 27,880.33 and 14,163.97 is: 19,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.21 : 27,880.33 = 14,163.97 : x
  2. Step 2: Convert to fraction form
    20,195.21/27,880.33 = 14,163.97/x
  3. Step 3: Cross multiply
    20,195.21x = 27,880.33 × 14,163.97
  4. Step 4: Simplify right side
    20,195.21x = 394,896,157.71
  5. Step 5: Solve for x
    x = 394,896,157.71/20,195.21
  6. Step 6: Final answer
    x = 19,553.95

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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.