Home / 31,375.45-47,051.94-11,379.89

Finding the Fourth Proportional to 31,375.45, 47,051.94 and 11,379.89

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Solution

The fourth proportional to 31,375.45, 47,051.94 and 11,379.89 is: 17,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,375.45 : 47,051.94 = 11,379.89 : x
  2. Step 2: Convert to fraction form
    31,375.45/47,051.94 = 11,379.89/x
  3. Step 3: Cross multiply
    31,375.45x = 47,051.94 × 11,379.89
  4. Step 4: Simplify right side
    31,375.45x = 535,445,901.49
  5. Step 5: Solve for x
    x = 535,445,901.49/31,375.45
  6. Step 6: Final answer
    x = 17,065.76

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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.