Home / 20,544.37-28,351.22-11,112.93

Finding the Fourth Proportional to 20,544.37, 28,351.22 and 11,112.93

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Solution

The fourth proportional to 20,544.37, 28,351.22 and 11,112.93 is: 15,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,544.37 : 28,351.22 = 11,112.93 : x
  2. Step 2: Convert to fraction form
    20,544.37/28,351.22 = 11,112.93/x
  3. Step 3: Cross multiply
    20,544.37x = 28,351.22 × 11,112.93
  4. Step 4: Simplify right side
    20,544.37x = 315,065,067.71
  5. Step 5: Solve for x
    x = 315,065,067.71/20,544.37
  6. Step 6: Final answer
    x = 15,335.84

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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.