Home / 20,150.10-27,804.64-11,199.47

Finding the Fourth Proportional to 20,150.10, 27,804.64 and 11,199.47

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Solution

The fourth proportional to 20,150.10, 27,804.64 and 11,199.47 is: 15,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.10 : 27,804.64 = 11,199.47 : x
  2. Step 2: Convert to fraction form
    20,150.10/27,804.64 = 11,199.47/x
  3. Step 3: Cross multiply
    20,150.10x = 27,804.64 × 11,199.47
  4. Step 4: Simplify right side
    20,150.10x = 311,397,231.54
  5. Step 5: Solve for x
    x = 311,397,231.54/20,150.10
  6. Step 6: Final answer
    x = 15,453.88

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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.