Home / 20,923.43-31,380.51-6,133.49

Finding the Fourth Proportional to 20,923.43, 31,380.51 and 6,133.49

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Solution

The fourth proportional to 20,923.43, 31,380.51 and 6,133.49 is: 9,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.43 : 31,380.51 = 6,133.49 : x
  2. Step 2: Convert to fraction form
    20,923.43/31,380.51 = 6,133.49/x
  3. Step 3: Cross multiply
    20,923.43x = 31,380.51 × 6,133.49
  4. Step 4: Simplify right side
    20,923.43x = 192,472,044.28
  5. Step 5: Solve for x
    x = 192,472,044.28/20,923.43
  6. Step 6: Final answer
    x = 9,198.88

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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.