Home / 28,129.11-38,826.54-16,200.83

Finding the Fourth Proportional to 28,129.11, 38,826.54 and 16,200.83

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Solution

The fourth proportional to 28,129.11, 38,826.54 and 16,200.83 is: 22,361.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,129.11 : 38,826.54 = 16,200.83 : x
  2. Step 2: Convert to fraction form
    28,129.11/38,826.54 = 16,200.83/x
  3. Step 3: Cross multiply
    28,129.11x = 38,826.54 × 16,200.83
  4. Step 4: Simplify right side
    28,129.11x = 629,021,979.90
  5. Step 5: Solve for x
    x = 629,021,979.90/28,129.11
  6. Step 6: Final answer
    x = 22,361.96

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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.