Home / 39,642.39-54,735.20-25,519.84

Finding the Fourth Proportional to 39,642.39, 54,735.20 and 25,519.84

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Solution

The fourth proportional to 39,642.39, 54,735.20 and 25,519.84 is: 35,235.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,642.39 : 54,735.20 = 25,519.84 : x
  2. Step 2: Convert to fraction form
    39,642.39/54,735.20 = 25,519.84/x
  3. Step 3: Cross multiply
    39,642.39x = 54,735.20 × 25,519.84
  4. Step 4: Simplify right side
    39,642.39x = 1,396,833,546.37
  5. Step 5: Solve for x
    x = 1,396,833,546.37/39,642.39
  6. Step 6: Final answer
    x = 35,235.86

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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.