Home / 31,850.01-43,958.09-18,429.42

Finding the Fourth Proportional to 31,850.01, 43,958.09 and 18,429.42

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Solution

The fourth proportional to 31,850.01, 43,958.09 and 18,429.42 is: 25,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,850.01 : 43,958.09 = 18,429.42 : x
  2. Step 2: Convert to fraction form
    31,850.01/43,958.09 = 18,429.42/x
  3. Step 3: Cross multiply
    31,850.01x = 43,958.09 × 18,429.42
  4. Step 4: Simplify right side
    31,850.01x = 810,122,313.92
  5. Step 5: Solve for x
    x = 810,122,313.92/31,850.01
  6. Step 6: Final answer
    x = 25,435.54

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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.