Home / 36,531.88-50,413.80-20,621.50

Finding the Fourth Proportional to 36,531.88, 50,413.80 and 20,621.50

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Solution

The fourth proportional to 36,531.88, 50,413.80 and 20,621.50 is: 28,457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,531.88 : 50,413.80 = 20,621.50 : x
  2. Step 2: Convert to fraction form
    36,531.88/50,413.80 = 20,621.50/x
  3. Step 3: Cross multiply
    36,531.88x = 50,413.80 × 20,621.50
  4. Step 4: Simplify right side
    36,531.88x = 1,039,608,176.70
  5. Step 5: Solve for x
    x = 1,039,608,176.70/36,531.88
  6. Step 6: Final answer
    x = 28,457.56

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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.