Home / 20,398.38-30,597.57-5,608.86

Finding the Fourth Proportional to 20,398.38, 30,597.57 and 5,608.86

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Solution

The fourth proportional to 20,398.38, 30,597.57 and 5,608.86 is: 8,413.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,398.38 : 30,597.57 = 5,608.86 : x
  2. Step 2: Convert to fraction form
    20,398.38/30,597.57 = 5,608.86/x
  3. Step 3: Cross multiply
    20,398.38x = 30,597.57 × 5,608.86
  4. Step 4: Simplify right side
    20,398.38x = 171,617,486.47
  5. Step 5: Solve for x
    x = 171,617,486.47/20,398.38
  6. Step 6: Final answer
    x = 8,413.29

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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.