Home / 20,087.93-30,136.31-7,608.05

Finding the Fourth Proportional to 20,087.93, 30,136.31 and 7,608.05

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Solution

The fourth proportional to 20,087.93, 30,136.31 and 7,608.05 is: 11,413.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,087.93 : 30,136.31 = 7,608.05 : x
  2. Step 2: Convert to fraction form
    20,087.93/30,136.31 = 7,608.05/x
  3. Step 3: Cross multiply
    20,087.93x = 30,136.31 × 7,608.05
  4. Step 4: Simplify right side
    20,087.93x = 229,278,477.58
  5. Step 5: Solve for x
    x = 229,278,477.58/20,087.93
  6. Step 6: Final answer
    x = 11,413.74

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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.