Home / 20,629.08-30,917.64-11,249.58

Finding the Fourth Proportional to 20,629.08, 30,917.64 and 11,249.58

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Solution

The fourth proportional to 20,629.08, 30,917.64 and 11,249.58 is: 16,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,629.08 : 30,917.64 = 11,249.58 : x
  2. Step 2: Convert to fraction form
    20,629.08/30,917.64 = 11,249.58/x
  3. Step 3: Cross multiply
    20,629.08x = 30,917.64 × 11,249.58
  4. Step 4: Simplify right side
    20,629.08x = 347,810,464.59
  5. Step 5: Solve for x
    x = 347,810,464.59/20,629.08
  6. Step 6: Final answer
    x = 16,860.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.