Home / 25,289.82-37,940.40-7,761.42

Finding the Fourth Proportional to 25,289.82, 37,940.40 and 7,761.42

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Solution

The fourth proportional to 25,289.82, 37,940.40 and 7,761.42 is: 11,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,289.82 : 37,940.40 = 7,761.42 : x
  2. Step 2: Convert to fraction form
    25,289.82/37,940.40 = 7,761.42/x
  3. Step 3: Cross multiply
    25,289.82x = 37,940.40 × 7,761.42
  4. Step 4: Simplify right side
    25,289.82x = 294,471,379.37
  5. Step 5: Solve for x
    x = 294,471,379.37/25,289.82
  6. Step 6: Final answer
    x = 11,643.87

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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.