Home / 20,524.88-30,787.32-4,942.50

Finding the Fourth Proportional to 20,524.88, 30,787.32 and 4,942.50

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Solution

The fourth proportional to 20,524.88, 30,787.32 and 4,942.50 is: 7,413.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.88 : 30,787.32 = 4,942.50 : x
  2. Step 2: Convert to fraction form
    20,524.88/30,787.32 = 4,942.50/x
  3. Step 3: Cross multiply
    20,524.88x = 30,787.32 × 4,942.50
  4. Step 4: Simplify right side
    20,524.88x = 152,166,329.10
  5. Step 5: Solve for x
    x = 152,166,329.10/20,524.88
  6. Step 6: Final answer
    x = 7,413.75

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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.