Home / 20,067.24-30,086.12-12,281.52

Finding the Fourth Proportional to 20,067.24, 30,086.12 and 12,281.52

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Solution

The fourth proportional to 20,067.24, 30,086.12 and 12,281.52 is: 18,413.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.24 : 30,086.12 = 12,281.52 : x
  2. Step 2: Convert to fraction form
    20,067.24/30,086.12 = 12,281.52/x
  3. Step 3: Cross multiply
    20,067.24x = 30,086.12 × 12,281.52
  4. Step 4: Simplify right side
    20,067.24x = 369,503,284.50
  5. Step 5: Solve for x
    x = 369,503,284.50/20,067.24
  6. Step 6: Final answer
    x = 18,413.26

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1.5x scale

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.