Home / 19,982.91-29,923.25-19,391.66

Finding the Fourth Proportional to 19,982.91, 29,923.25 and 19,391.66

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Solution

The fourth proportional to 19,982.91, 29,923.25 and 19,391.66 is: 29,037.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.91 : 29,923.25 = 19,391.66 : x
  2. Step 2: Convert to fraction form
    19,982.91/29,923.25 = 19,391.66/x
  3. Step 3: Cross multiply
    19,982.91x = 29,923.25 × 19,391.66
  4. Step 4: Simplify right side
    19,982.91x = 580,261,490.10
  5. Step 5: Solve for x
    x = 580,261,490.10/19,982.91
  6. Step 6: Final answer
    x = 29,037.89

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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.