Home / 31,833.81-47,771.46-12,112.55

Finding the Fourth Proportional to 31,833.81, 47,771.46 and 12,112.55

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Solution

The fourth proportional to 31,833.81, 47,771.46 and 12,112.55 is: 18,176.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,833.81 : 47,771.46 = 12,112.55 : x
  2. Step 2: Convert to fraction form
    31,833.81/47,771.46 = 12,112.55/x
  3. Step 3: Cross multiply
    31,833.81x = 47,771.46 × 12,112.55
  4. Step 4: Simplify right side
    31,833.81x = 578,633,958.97
  5. Step 5: Solve for x
    x = 578,633,958.97/31,833.81
  6. Step 6: Final answer
    x = 18,176.71

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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.