Home / 39,321.10-54,258.42-22,319.20

Finding the Fourth Proportional to 39,321.10, 54,258.42 and 22,319.20

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Solution

The fourth proportional to 39,321.10, 54,258.42 and 22,319.20 is: 30,797.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.10 : 54,258.42 = 22,319.20 : x
  2. Step 2: Convert to fraction form
    39,321.10/54,258.42 = 22,319.20/x
  3. Step 3: Cross multiply
    39,321.10x = 54,258.42 × 22,319.20
  4. Step 4: Simplify right side
    39,321.10x = 1,211,004,527.66
  5. Step 5: Solve for x
    x = 1,211,004,527.66/39,321.10
  6. Step 6: Final answer
    x = 30,797.83

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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.