Home / 43,997.20-65,963.40-19,016.80

Finding the Fourth Proportional to 43,997.20, 65,963.40 and 19,016.80

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Solution

The fourth proportional to 43,997.20, 65,963.40 and 19,016.80 is: 28,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,997.20 : 65,963.40 = 19,016.80 : x
  2. Step 2: Convert to fraction form
    43,997.20/65,963.40 = 19,016.80/x
  3. Step 3: Cross multiply
    43,997.20x = 65,963.40 × 19,016.80
  4. Step 4: Simplify right side
    43,997.20x = 1,254,412,785.12
  5. Step 5: Solve for x
    x = 1,254,412,785.12/43,997.20
  6. Step 6: Final answer
    x = 28,511.20

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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.