Home / 31,584.40-47,372.92-8,212.66

Finding the Fourth Proportional to 31,584.40, 47,372.92 and 8,212.66

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Solution

The fourth proportional to 31,584.40, 47,372.92 and 8,212.66 is: 12,318.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.40 : 47,372.92 = 8,212.66 : x
  2. Step 2: Convert to fraction form
    31,584.40/47,372.92 = 8,212.66/x
  3. Step 3: Cross multiply
    31,584.40x = 47,372.92 × 8,212.66
  4. Step 4: Simplify right side
    31,584.40x = 389,057,685.17
  5. Step 5: Solve for x
    x = 389,057,685.17/31,584.40
  6. Step 6: Final answer
    x = 12,318.03

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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.