Home / 28,086.54-38,747.39-16,147.34

Finding the Fourth Proportional to 28,086.54, 38,747.39 and 16,147.34

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Solution

The fourth proportional to 28,086.54, 38,747.39 and 16,147.34 is: 22,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,086.54 : 38,747.39 = 16,147.34 : x
  2. Step 2: Convert to fraction form
    28,086.54/38,747.39 = 16,147.34/x
  3. Step 3: Cross multiply
    28,086.54x = 38,747.39 × 16,147.34
  4. Step 4: Simplify right side
    28,086.54x = 625,667,296.57
  5. Step 5: Solve for x
    x = 625,667,296.57/28,086.54
  6. Step 6: Final answer
    x = 22,276.41

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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.