Home / 20,943.20-31,413.26-6,153.28

Finding the Fourth Proportional to 20,943.20, 31,413.26 and 6,153.28

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Solution

The fourth proportional to 20,943.20, 31,413.26 and 6,153.28 is: 9,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.20 : 31,413.26 = 6,153.28 : x
  2. Step 2: Convert to fraction form
    20,943.20/31,413.26 = 6,153.28/x
  3. Step 3: Cross multiply
    20,943.20x = 31,413.26 × 6,153.28
  4. Step 4: Simplify right side
    20,943.20x = 193,294,584.49
  5. Step 5: Solve for x
    x = 193,294,584.49/20,943.20
  6. Step 6: Final answer
    x = 9,229.47

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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.