Home / 39,290.31-54,183.35-30,323.61

Finding the Fourth Proportional to 39,290.31, 54,183.35 and 30,323.61

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Solution

The fourth proportional to 39,290.31, 54,183.35 and 30,323.61 is: 41,817.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,290.31 : 54,183.35 = 30,323.61 : x
  2. Step 2: Convert to fraction form
    39,290.31/54,183.35 = 30,323.61/x
  3. Step 3: Cross multiply
    39,290.31x = 54,183.35 × 30,323.61
  4. Step 4: Simplify right side
    39,290.31x = 1,643,034,622.28
  5. Step 5: Solve for x
    x = 1,643,034,622.28/39,290.31
  6. Step 6: Final answer
    x = 41,817.81

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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.