Home / 20,150.26-27,807.51-11,198.59

Finding the Fourth Proportional to 20,150.26, 27,807.51 and 11,198.59

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Solution

The fourth proportional to 20,150.26, 27,807.51 and 11,198.59 is: 15,454.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.26 : 27,807.51 = 11,198.59 : x
  2. Step 2: Convert to fraction form
    20,150.26/27,807.51 = 11,198.59/x
  3. Step 3: Cross multiply
    20,150.26x = 27,807.51 × 11,198.59
  4. Step 4: Simplify right side
    20,150.26x = 311,404,903.41
  5. Step 5: Solve for x
    x = 311,404,903.41/20,150.26
  6. Step 6: Final answer
    x = 15,454.14

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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.