Home / 31,343.44-47,003.31-12,617.11

Finding the Fourth Proportional to 31,343.44, 47,003.31 and 12,617.11

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Solution

The fourth proportional to 31,343.44, 47,003.31 and 12,617.11 is: 18,920.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,343.44 : 47,003.31 = 12,617.11 : x
  2. Step 2: Convert to fraction form
    31,343.44/47,003.31 = 12,617.11/x
  3. Step 3: Cross multiply
    31,343.44x = 47,003.31 × 12,617.11
  4. Step 4: Simplify right side
    31,343.44x = 593,045,932.63
  5. Step 5: Solve for x
    x = 593,045,932.63/31,343.44
  6. Step 6: Final answer
    x = 18,920.89

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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.