Home / 31,584.15-47,372.55-8,212.41

Finding the Fourth Proportional to 31,584.15, 47,372.55 and 8,212.41

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Solution

The fourth proportional to 31,584.15, 47,372.55 and 8,212.41 is: 12,317.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.15 : 47,372.55 = 8,212.41 : x
  2. Step 2: Convert to fraction form
    31,584.15/47,372.55 = 8,212.41/x
  3. Step 3: Cross multiply
    31,584.15x = 47,372.55 × 8,212.41
  4. Step 4: Simplify right side
    31,584.15x = 389,042,803.35
  5. Step 5: Solve for x
    x = 389,042,803.35/31,584.15
  6. Step 6: Final answer
    x = 12,317.66

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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.