Home / 19,640.52-29,446.20-13,384.80

Finding the Fourth Proportional to 19,640.52, 29,446.20 and 13,384.80

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Solution

The fourth proportional to 19,640.52, 29,446.20 and 13,384.80 is: 20,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.52 : 29,446.20 = 13,384.80 : x
  2. Step 2: Convert to fraction form
    19,640.52/29,446.20 = 13,384.80/x
  3. Step 3: Cross multiply
    19,640.52x = 29,446.20 × 13,384.80
  4. Step 4: Simplify right side
    19,640.52x = 394,131,497.76
  5. Step 5: Solve for x
    x = 394,131,497.76/19,640.52
  6. Step 6: Final answer
    x = 20,067.26

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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.