Home / 39,217.56-54,121.05-21,313.73

Finding the Fourth Proportional to 39,217.56, 54,121.05 and 21,313.73

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Solution

The fourth proportional to 39,217.56, 54,121.05 and 21,313.73 is: 29,413.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,217.56 : 54,121.05 = 21,313.73 : x
  2. Step 2: Convert to fraction form
    39,217.56/54,121.05 = 21,313.73/x
  3. Step 3: Cross multiply
    39,217.56x = 54,121.05 × 21,313.73
  4. Step 4: Simplify right side
    39,217.56x = 1,153,521,069.84
  5. Step 5: Solve for x
    x = 1,153,521,069.84/39,217.56
  6. Step 6: Final answer
    x = 29,413.38

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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.