Home / 29,190.80-43,786.20-19,859.60

Finding the Fourth Proportional to 29,190.80, 43,786.20 and 19,859.60

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Solution

The fourth proportional to 29,190.80, 43,786.20 and 19,859.60 is: 29,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,190.80 : 43,786.20 = 19,859.60 : x
  2. Step 2: Convert to fraction form
    29,190.80/43,786.20 = 19,859.60/x
  3. Step 3: Cross multiply
    29,190.80x = 43,786.20 × 19,859.60
  4. Step 4: Simplify right side
    29,190.80x = 869,576,417.52
  5. Step 5: Solve for x
    x = 869,576,417.52/29,190.80
  6. Step 6: Final answer
    x = 29,789.40

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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.