Home / 28,738.59-39,658.86-16,163.34

Finding the Fourth Proportional to 28,738.59, 39,658.86 and 16,163.34

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Solution

The fourth proportional to 28,738.59, 39,658.86 and 16,163.34 is: 22,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,738.59 : 39,658.86 = 16,163.34 : x
  2. Step 2: Convert to fraction form
    28,738.59/39,658.86 = 16,163.34/x
  3. Step 3: Cross multiply
    28,738.59x = 39,658.86 × 16,163.34
  4. Step 4: Simplify right side
    28,738.59x = 641,019,439.90
  5. Step 5: Solve for x
    x = 641,019,439.90/28,738.59
  6. Step 6: Final answer
    x = 22,305.18

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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.