Home / 31,986.70-44,163.39-20,683.54

Finding the Fourth Proportional to 31,986.70, 44,163.39 and 20,683.54

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Solution

The fourth proportional to 31,986.70, 44,163.39 and 20,683.54 is: 28,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,986.70 : 44,163.39 = 20,683.54 : x
  2. Step 2: Convert to fraction form
    31,986.70/44,163.39 = 20,683.54/x
  3. Step 3: Cross multiply
    31,986.70x = 44,163.39 × 20,683.54
  4. Step 4: Simplify right side
    31,986.70x = 913,455,243.60
  5. Step 5: Solve for x
    x = 913,455,243.60/31,986.70
  6. Step 6: Final answer
    x = 28,557.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.