Home / 31,963.86-47,946.19-12,243.60

Finding the Fourth Proportional to 31,963.86, 47,946.19 and 12,243.60

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Solution

The fourth proportional to 31,963.86, 47,946.19 and 12,243.60 is: 18,365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,963.86 : 47,946.19 = 12,243.60 : x
  2. Step 2: Convert to fraction form
    31,963.86/47,946.19 = 12,243.60/x
  3. Step 3: Cross multiply
    31,963.86x = 47,946.19 × 12,243.60
  4. Step 4: Simplify right side
    31,963.86x = 587,033,732.15
  5. Step 5: Solve for x
    x = 587,033,732.15/31,963.86
  6. Step 6: Final answer
    x = 18,365.55

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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.