Home / 31,185.62-46,745.76-14,531.92

Finding the Fourth Proportional to 31,185.62, 46,745.76 and 14,531.92

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Solution

The fourth proportional to 31,185.62, 46,745.76 and 14,531.92 is: 21,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,185.62 : 46,745.76 = 14,531.92 : x
  2. Step 2: Convert to fraction form
    31,185.62/46,745.76 = 14,531.92/x
  3. Step 3: Cross multiply
    31,185.62x = 46,745.76 × 14,531.92
  4. Step 4: Simplify right side
    31,185.62x = 679,305,644.66
  5. Step 5: Solve for x
    x = 679,305,644.66/31,185.62
  6. Step 6: Final answer
    x = 21,782.66

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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.