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Finding the Fourth Proportional to 20,552.40, 30,827.97 and 7,413.30

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Solution

The fourth proportional to 20,552.40, 30,827.97 and 7,413.30 is: 11,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.40 : 30,827.97 = 7,413.30 : x
  2. Step 2: Convert to fraction form
    20,552.40/30,827.97 = 7,413.30/x
  3. Step 3: Cross multiply
    20,552.40x = 30,827.97 × 7,413.30
  4. Step 4: Simplify right side
    20,552.40x = 228,536,990.00
  5. Step 5: Solve for x
    x = 228,536,990.00/20,552.40
  6. Step 6: Final answer
    x = 11,119.72

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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.