Home / 31,936.63-47,905.31-12,216.19

Finding the Fourth Proportional to 31,936.63, 47,905.31 and 12,216.19

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Solution

The fourth proportional to 31,936.63, 47,905.31 and 12,216.19 is: 18,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,936.63 : 47,905.31 = 12,216.19 : x
  2. Step 2: Convert to fraction form
    31,936.63/47,905.31 = 12,216.19/x
  3. Step 3: Cross multiply
    31,936.63x = 47,905.31 × 12,216.19
  4. Step 4: Simplify right side
    31,936.63x = 585,220,368.97
  5. Step 5: Solve for x
    x = 585,220,368.97/31,936.63
  6. Step 6: Final answer
    x = 18,324.42

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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.