Home / 25,861.37-38,791.24-7,142.54

Finding the Fourth Proportional to 25,861.37, 38,791.24 and 7,142.54

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Solution

The fourth proportional to 25,861.37, 38,791.24 and 7,142.54 is: 10,713.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,861.37 : 38,791.24 = 7,142.54 : x
  2. Step 2: Convert to fraction form
    25,861.37/38,791.24 = 7,142.54/x
  3. Step 3: Cross multiply
    25,861.37x = 38,791.24 × 7,142.54
  4. Step 4: Simplify right side
    25,861.37x = 277,067,771.54
  5. Step 5: Solve for x
    x = 277,067,771.54/25,861.37
  6. Step 6: Final answer
    x = 10,713.58

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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.