Home / 39,613.78-54,668.52-22,620.79

Finding the Fourth Proportional to 39,613.78, 54,668.52 and 22,620.79

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Solution

The fourth proportional to 39,613.78, 54,668.52 and 22,620.79 is: 31,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,613.78 : 54,668.52 = 22,620.79 : x
  2. Step 2: Convert to fraction form
    39,613.78/54,668.52 = 22,620.79/x
  3. Step 3: Cross multiply
    39,613.78x = 54,668.52 × 22,620.79
  4. Step 4: Simplify right side
    39,613.78x = 1,236,645,110.53
  5. Step 5: Solve for x
    x = 1,236,645,110.53/39,613.78
  6. Step 6: Final answer
    x = 31,217.55

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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.