Home / 20,413.62-28,146.69-17,419.86

Finding the Fourth Proportional to 20,413.62, 28,146.69 and 17,419.86

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Solution

The fourth proportional to 20,413.62, 28,146.69 and 17,419.86 is: 24,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.62 : 28,146.69 = 17,419.86 : x
  2. Step 2: Convert to fraction form
    20,413.62/28,146.69 = 17,419.86/x
  3. Step 3: Cross multiply
    20,413.62x = 28,146.69 × 17,419.86
  4. Step 4: Simplify right side
    20,413.62x = 490,311,399.26
  5. Step 5: Solve for x
    x = 490,311,399.26/20,413.62
  6. Step 6: Final answer
    x = 24,018.84

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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.