Home / 22,131.70-33,197.42-12,765.65

Finding the Fourth Proportional to 22,131.70, 33,197.42 and 12,765.65

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Solution

The fourth proportional to 22,131.70, 33,197.42 and 12,765.65 is: 19,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,131.70 : 33,197.42 = 12,765.65 : x
  2. Step 2: Convert to fraction form
    22,131.70/33,197.42 = 12,765.65/x
  3. Step 3: Cross multiply
    22,131.70x = 33,197.42 × 12,765.65
  4. Step 4: Simplify right side
    22,131.70x = 423,786,478.64
  5. Step 5: Solve for x
    x = 423,786,478.64/22,131.70
  6. Step 6: Final answer
    x = 19,148.40

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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.