Home / 28,442.39-39,250.62-15,695.73

Finding the Fourth Proportional to 28,442.39, 39,250.62 and 15,695.73

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Solution

The fourth proportional to 28,442.39, 39,250.62 and 15,695.73 is: 21,660.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.39 : 39,250.62 = 15,695.73 : x
  2. Step 2: Convert to fraction form
    28,442.39/39,250.62 = 15,695.73/x
  3. Step 3: Cross multiply
    28,442.39x = 39,250.62 × 15,695.73
  4. Step 4: Simplify right side
    28,442.39x = 616,067,133.85
  5. Step 5: Solve for x
    x = 616,067,133.85/28,442.39
  6. Step 6: Final answer
    x = 21,660.18

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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.