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Finding the Fourth Proportional to 30,273.98, 45,413.24 and 8,086.86

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Solution

The fourth proportional to 30,273.98, 45,413.24 and 8,086.86 is: 12,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,273.98 : 45,413.24 = 8,086.86 : x
  2. Step 2: Convert to fraction form
    30,273.98/45,413.24 = 8,086.86/x
  3. Step 3: Cross multiply
    30,273.98x = 45,413.24 × 8,086.86
  4. Step 4: Simplify right side
    30,273.98x = 367,250,473.59
  5. Step 5: Solve for x
    x = 367,250,473.59/30,273.98
  6. Step 6: Final answer
    x = 12,130.90

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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.