Home / 31,761.35-47,641.56-7,745.75

Finding the Fourth Proportional to 31,761.35, 47,641.56 and 7,745.75

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Solution

The fourth proportional to 31,761.35, 47,641.56 and 7,745.75 is: 11,618.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,761.35 : 47,641.56 = 7,745.75 : x
  2. Step 2: Convert to fraction form
    31,761.35/47,641.56 = 7,745.75/x
  3. Step 3: Cross multiply
    31,761.35x = 47,641.56 × 7,745.75
  4. Step 4: Simplify right side
    31,761.35x = 369,019,613.37
  5. Step 5: Solve for x
    x = 369,019,613.37/31,761.35
  6. Step 6: Final answer
    x = 11,618.51

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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.