Home / 20,151.45-27,807.44-11,198.16

Finding the Fourth Proportional to 20,151.45, 27,807.44 and 11,198.16

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Solution

The fourth proportional to 20,151.45, 27,807.44 and 11,198.16 is: 15,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,151.45 : 27,807.44 = 11,198.16 : x
  2. Step 2: Convert to fraction form
    20,151.45/27,807.44 = 11,198.16/x
  3. Step 3: Cross multiply
    20,151.45x = 27,807.44 × 11,198.16
  4. Step 4: Simplify right side
    20,151.45x = 311,392,106.32
  5. Step 5: Solve for x
    x = 311,392,106.32/20,151.45
  6. Step 6: Final answer
    x = 15,452.59

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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.