Home / 28,896.14-39,876.15-16,149.56

Finding the Fourth Proportional to 28,896.14, 39,876.15 and 16,149.56

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Solution

The fourth proportional to 28,896.14, 39,876.15 and 16,149.56 is: 22,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.14 : 39,876.15 = 16,149.56 : x
  2. Step 2: Convert to fraction form
    28,896.14/39,876.15 = 16,149.56/x
  3. Step 3: Cross multiply
    28,896.14x = 39,876.15 × 16,149.56
  4. Step 4: Simplify right side
    28,896.14x = 643,982,276.99
  5. Step 5: Solve for x
    x = 643,982,276.99/28,896.14
  6. Step 6: Final answer
    x = 22,286.10

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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.