Home / 39,182.76-54,035.64-30,215.88

Finding the Fourth Proportional to 39,182.76, 54,035.64 and 30,215.88

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Solution

The fourth proportional to 39,182.76, 54,035.64 and 30,215.88 is: 41,669.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,182.76 : 54,035.64 = 30,215.88 : x
  2. Step 2: Convert to fraction form
    39,182.76/54,035.64 = 30,215.88/x
  3. Step 3: Cross multiply
    39,182.76x = 54,035.64 × 30,215.88
  4. Step 4: Simplify right side
    39,182.76x = 1,632,734,413.96
  5. Step 5: Solve for x
    x = 1,632,734,413.96/39,182.76
  6. Step 6: Final answer
    x = 41,669.71

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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.