Home / 28,896.36-39,876.46-16,149.80

Finding the Fourth Proportional to 28,896.36, 39,876.46 and 16,149.80

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Solution

The fourth proportional to 28,896.36, 39,876.46 and 16,149.80 is: 22,286.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,896.36 : 39,876.46 = 16,149.80 : x
  2. Step 2: Convert to fraction form
    28,896.36/39,876.46 = 16,149.80/x
  3. Step 3: Cross multiply
    28,896.36x = 39,876.46 × 16,149.80
  4. Step 4: Simplify right side
    28,896.36x = 643,996,853.71
  5. Step 5: Solve for x
    x = 643,996,853.71/28,896.36
  6. Step 6: Final answer
    x = 22,286.44

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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.