Home / 31,969.25-47,960.80-12,247.81

Finding the Fourth Proportional to 31,969.25, 47,960.80 and 12,247.81

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Solution

The fourth proportional to 31,969.25, 47,960.80 and 12,247.81 is: 18,374.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,969.25 : 47,960.80 = 12,247.81 : x
  2. Step 2: Convert to fraction form
    31,969.25/47,960.80 = 12,247.81/x
  3. Step 3: Cross multiply
    31,969.25x = 47,960.80 × 12,247.81
  4. Step 4: Simplify right side
    31,969.25x = 587,414,615.33
  5. Step 5: Solve for x
    x = 587,414,615.33/31,969.25
  6. Step 6: Final answer
    x = 18,374.36

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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.