Home / 36,413.55-54,620.33-20,820.24

Finding the Fourth Proportional to 36,413.55, 54,620.33 and 20,820.24

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Solution

The fourth proportional to 36,413.55, 54,620.33 and 20,820.24 is: 31,230.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,413.55 : 54,620.33 = 20,820.24 : x
  2. Step 2: Convert to fraction form
    36,413.55/54,620.33 = 20,820.24/x
  3. Step 3: Cross multiply
    36,413.55x = 54,620.33 × 20,820.24
  4. Step 4: Simplify right side
    36,413.55x = 1,137,208,275.38
  5. Step 5: Solve for x
    x = 1,137,208,275.38/36,413.55
  6. Step 6: Final answer
    x = 31,230.36

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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.