Home / 39,829.85-54,964.22-21,924.69

Finding the Fourth Proportional to 39,829.85, 54,964.22 and 21,924.69

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Solution

The fourth proportional to 39,829.85, 54,964.22 and 21,924.69 is: 30,255.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,829.85 : 54,964.22 = 21,924.69 : x
  2. Step 2: Convert to fraction form
    39,829.85/54,964.22 = 21,924.69/x
  3. Step 3: Cross multiply
    39,829.85x = 54,964.22 × 21,924.69
  4. Step 4: Simplify right side
    39,829.85x = 1,205,073,374.97
  5. Step 5: Solve for x
    x = 1,205,073,374.97/39,829.85
  6. Step 6: Final answer
    x = 30,255.54

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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.