Home / 22,039.25-30,413.93-12,478.87

Finding the Fourth Proportional to 22,039.25, 30,413.93 and 12,478.87

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Solution

The fourth proportional to 22,039.25, 30,413.93 and 12,478.87 is: 17,220.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,039.25 : 30,413.93 = 12,478.87 : x
  2. Step 2: Convert to fraction form
    22,039.25/30,413.93 = 12,478.87/x
  3. Step 3: Cross multiply
    22,039.25x = 30,413.93 × 12,478.87
  4. Step 4: Simplify right side
    22,039.25x = 379,531,478.66
  5. Step 5: Solve for x
    x = 379,531,478.66/22,039.25
  6. Step 6: Final answer
    x = 17,220.71

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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.