Home / 19,781.70-29,529.57-16,828.44

Finding the Fourth Proportional to 19,781.70, 29,529.57 and 16,828.44

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Solution

The fourth proportional to 19,781.70, 29,529.57 and 16,828.44 is: 25,121.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.70 : 29,529.57 = 16,828.44 : x
  2. Step 2: Convert to fraction form
    19,781.70/29,529.57 = 16,828.44/x
  3. Step 3: Cross multiply
    19,781.70x = 29,529.57 × 16,828.44
  4. Step 4: Simplify right side
    19,781.70x = 496,936,596.97
  5. Step 5: Solve for x
    x = 496,936,596.97/19,781.70
  6. Step 6: Final answer
    x = 25,121.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.