Home / 20,413.24-30,620.56-5,622.12

Finding the Fourth Proportional to 20,413.24, 30,620.56 and 5,622.12

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Solution

The fourth proportional to 20,413.24, 30,620.56 and 5,622.12 is: 8,433.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413.24 : 30,620.56 = 5,622.12 : x
  2. Step 2: Convert to fraction form
    20,413.24/30,620.56 = 5,622.12/x
  3. Step 3: Cross multiply
    20,413.24x = 30,620.56 × 5,622.12
  4. Step 4: Simplify right side
    20,413.24x = 172,152,462.79
  5. Step 5: Solve for x
    x = 172,152,462.79/20,413.24
  6. Step 6: Final answer
    x = 8,433.37

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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.