Home / 18,944.34-28,413.96-13,704.42

Finding the Fourth Proportional to 18,944.34, 28,413.96 and 13,704.42

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Solution

The fourth proportional to 18,944.34, 28,413.96 and 13,704.42 is: 20,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.34 : 28,413.96 = 13,704.42 : x
  2. Step 2: Convert to fraction form
    18,944.34/28,413.96 = 13,704.42/x
  3. Step 3: Cross multiply
    18,944.34x = 28,413.96 × 13,704.42
  4. Step 4: Simplify right side
    18,944.34x = 389,396,841.70
  5. Step 5: Solve for x
    x = 389,396,841.70/18,944.34
  6. Step 6: Final answer
    x = 20,554.79

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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.