Home / 28,942.20-43,413.30-10,471.80

Finding the Fourth Proportional to 28,942.20, 43,413.30 and 10,471.80

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Solution

The fourth proportional to 28,942.20, 43,413.30 and 10,471.80 is: 15,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.20 : 43,413.30 = 10,471.80 : x
  2. Step 2: Convert to fraction form
    28,942.20/43,413.30 = 10,471.80/x
  3. Step 3: Cross multiply
    28,942.20x = 43,413.30 × 10,471.80
  4. Step 4: Simplify right side
    28,942.20x = 454,615,394.94
  5. Step 5: Solve for x
    x = 454,615,394.94/28,942.20
  6. Step 6: Final answer
    x = 15,707.70

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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.