Home / 31,938.94-47,908.41-12,223.54

Finding the Fourth Proportional to 31,938.94, 47,908.41 and 12,223.54

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Solution

The fourth proportional to 31,938.94, 47,908.41 and 12,223.54 is: 18,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,938.94 : 47,908.41 = 12,223.54 : x
  2. Step 2: Convert to fraction form
    31,938.94/47,908.41 = 12,223.54/x
  3. Step 3: Cross multiply
    31,938.94x = 47,908.41 × 12,223.54
  4. Step 4: Simplify right side
    31,938.94x = 585,610,365.97
  5. Step 5: Solve for x
    x = 585,610,365.97/31,938.94
  6. Step 6: Final answer
    x = 18,335.31

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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.