Home / 20,794.56-28,703.52-12,413.76

Finding the Fourth Proportional to 20,794.56, 28,703.52 and 12,413.76

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Solution

The fourth proportional to 20,794.56, 28,703.52 and 12,413.76 is: 17,135.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,794.56 : 28,703.52 = 12,413.76 : x
  2. Step 2: Convert to fraction form
    20,794.56/28,703.52 = 12,413.76/x
  3. Step 3: Cross multiply
    20,794.56x = 28,703.52 × 12,413.76
  4. Step 4: Simplify right side
    20,794.56x = 356,318,608.44
  5. Step 5: Solve for x
    x = 356,318,608.44/20,794.56
  6. Step 6: Final answer
    x = 17,135.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.