Home / 39,519.78-59,286.97-12,508.92

Finding the Fourth Proportional to 39,519.78, 59,286.97 and 12,508.92

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Solution

The fourth proportional to 39,519.78, 59,286.97 and 12,508.92 is: 18,765.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,519.78 : 59,286.97 = 12,508.92 : x
  2. Step 2: Convert to fraction form
    39,519.78/59,286.97 = 12,508.92/x
  3. Step 3: Cross multiply
    39,519.78x = 59,286.97 × 12,508.92
  4. Step 4: Simplify right side
    39,519.78x = 741,615,668.34
  5. Step 5: Solve for x
    x = 741,615,668.34/39,519.78
  6. Step 6: Final answer
    x = 18,765.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.