Home / 30,217.39-41,700.72-16,789.21

Finding the Fourth Proportional to 30,217.39, 41,700.72 and 16,789.21

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Solution

The fourth proportional to 30,217.39, 41,700.72 and 16,789.21 is: 23,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,217.39 : 41,700.72 = 16,789.21 : x
  2. Step 2: Convert to fraction form
    30,217.39/41,700.72 = 16,789.21/x
  3. Step 3: Cross multiply
    30,217.39x = 41,700.72 × 16,789.21
  4. Step 4: Simplify right side
    30,217.39x = 700,122,103.94
  5. Step 5: Solve for x
    x = 700,122,103.94/30,217.39
  6. Step 6: Final answer
    x = 23,169.51

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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.