Home / 28,120.32-38,805.84-16,183.44

Finding the Fourth Proportional to 28,120.32, 38,805.84 and 16,183.44

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Solution

The fourth proportional to 28,120.32, 38,805.84 and 16,183.44 is: 22,333.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,120.32 : 38,805.84 = 16,183.44 : x
  2. Step 2: Convert to fraction form
    28,120.32/38,805.84 = 16,183.44/x
  3. Step 3: Cross multiply
    28,120.32x = 38,805.84 × 16,183.44
  4. Step 4: Simplify right side
    28,120.32x = 628,011,983.29
  5. Step 5: Solve for x
    x = 628,011,983.29/28,120.32
  6. Step 6: Final answer
    x = 22,333.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.