Home / 20,151.41-27,808.38-11,198.48

Finding the Fourth Proportional to 20,151.41, 27,808.38 and 11,198.48

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Solution

The fourth proportional to 20,151.41, 27,808.38 and 11,198.48 is: 15,453.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.41 : 27,808.38 = 11,198.48 : x
  2. Step 2: Convert to fraction form
    20,151.41/27,808.38 = 11,198.48/x
  3. Step 3: Cross multiply
    20,151.41x = 27,808.38 × 11,198.48
  4. Step 4: Simplify right side
    20,151.41x = 311,411,448.22
  5. Step 5: Solve for x
    x = 311,411,448.22/20,151.41
  6. Step 6: Final answer
    x = 15,453.58

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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.