Home / 31,944.96-47,920.32-8,571.24

Finding the Fourth Proportional to 31,944.96, 47,920.32 and 8,571.24

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Solution

The fourth proportional to 31,944.96, 47,920.32 and 8,571.24 is: 12,857.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,944.96 : 47,920.32 = 8,571.24 : x
  2. Step 2: Convert to fraction form
    31,944.96/47,920.32 = 8,571.24/x
  3. Step 3: Cross multiply
    31,944.96x = 47,920.32 × 8,571.24
  4. Step 4: Simplify right side
    31,944.96x = 410,736,563.60
  5. Step 5: Solve for x
    x = 410,736,563.60/31,944.96
  6. Step 6: Final answer
    x = 12,857.63

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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.