Home / 31,178.26-46,721.31-18,704.98

Finding the Fourth Proportional to 31,178.26, 46,721.31 and 18,704.98

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Solution

The fourth proportional to 31,178.26, 46,721.31 and 18,704.98 is: 28,029.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,178.26 : 46,721.31 = 18,704.98 : x
  2. Step 2: Convert to fraction form
    31,178.26/46,721.31 = 18,704.98/x
  3. Step 3: Cross multiply
    31,178.26x = 46,721.31 × 18,704.98
  4. Step 4: Simplify right side
    31,178.26x = 873,921,169.12
  5. Step 5: Solve for x
    x = 873,921,169.12/31,178.26
  6. Step 6: Final answer
    x = 28,029.82

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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.