Home / 28,850.45-39,813.68-16,911.41

Finding the Fourth Proportional to 28,850.45, 39,813.68 and 16,911.41

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Solution

The fourth proportional to 28,850.45, 39,813.68 and 16,911.41 is: 23,337.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,850.45 : 39,813.68 = 16,911.41 : x
  2. Step 2: Convert to fraction form
    28,850.45/39,813.68 = 16,911.41/x
  3. Step 3: Cross multiply
    28,850.45x = 39,813.68 × 16,911.41
  4. Step 4: Simplify right side
    28,850.45x = 673,305,381.53
  5. Step 5: Solve for x
    x = 673,305,381.53/28,850.45
  6. Step 6: Final answer
    x = 23,337.78

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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.