Home / 20,198.07-27,868.50-11,585.21

Finding the Fourth Proportional to 20,198.07, 27,868.50 and 11,585.21

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Solution

The fourth proportional to 20,198.07, 27,868.50 and 11,585.21 is: 15,984.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.07 : 27,868.50 = 11,585.21 : x
  2. Step 2: Convert to fraction form
    20,198.07/27,868.50 = 11,585.21/x
  3. Step 3: Cross multiply
    20,198.07x = 27,868.50 × 11,585.21
  4. Step 4: Simplify right side
    20,198.07x = 322,862,285.54
  5. Step 5: Solve for x
    x = 322,862,285.54/20,198.07
  6. Step 6: Final answer
    x = 15,984.81

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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.