Home / 31,185.18-46,772.82-10,408.68

Finding the Fourth Proportional to 31,185.18, 46,772.82 and 10,408.68

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Solution

The fourth proportional to 31,185.18, 46,772.82 and 10,408.68 is: 15,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,185.18 : 46,772.82 = 10,408.68 : x
  2. Step 2: Convert to fraction form
    31,185.18/46,772.82 = 10,408.68/x
  3. Step 3: Cross multiply
    31,185.18x = 46,772.82 × 10,408.68
  4. Step 4: Simplify right side
    31,185.18x = 486,843,316.08
  5. Step 5: Solve for x
    x = 486,843,316.08/31,185.18
  6. Step 6: Final answer
    x = 15,611.37

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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.