Home / 22,145.43-30,556.94-12,713.79

Finding the Fourth Proportional to 22,145.43, 30,556.94 and 12,713.79

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Solution

The fourth proportional to 22,145.43, 30,556.94 and 12,713.79 is: 17,542.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,145.43 : 30,556.94 = 12,713.79 : x
  2. Step 2: Convert to fraction form
    22,145.43/30,556.94 = 12,713.79/x
  3. Step 3: Cross multiply
    22,145.43x = 30,556.94 × 12,713.79
  4. Step 4: Simplify right side
    22,145.43x = 388,494,454.63
  5. Step 5: Solve for x
    x = 388,494,454.63/22,145.43
  6. Step 6: Final answer
    x = 17,542.87

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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.