Home / 28,367.25-39,146.81-15,791.73

Finding the Fourth Proportional to 28,367.25, 39,146.81 and 15,791.73

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Solution

The fourth proportional to 28,367.25, 39,146.81 and 15,791.73 is: 21,792.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.25 : 39,146.81 = 15,791.73 : x
  2. Step 2: Convert to fraction form
    28,367.25/39,146.81 = 15,791.73/x
  3. Step 3: Cross multiply
    28,367.25x = 39,146.81 × 15,791.73
  4. Step 4: Simplify right side
    28,367.25x = 618,195,853.88
  5. Step 5: Solve for x
    x = 618,195,853.88/28,367.25
  6. Step 6: Final answer
    x = 21,792.59

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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.