Home / 39,919.38-55,086.39-22,014.60

Finding the Fourth Proportional to 39,919.38, 55,086.39 and 22,014.60

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Solution

The fourth proportional to 39,919.38, 55,086.39 and 22,014.60 is: 30,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,919.38 : 55,086.39 = 22,014.60 : x
  2. Step 2: Convert to fraction form
    39,919.38/55,086.39 = 22,014.60/x
  3. Step 3: Cross multiply
    39,919.38x = 55,086.39 × 22,014.60
  4. Step 4: Simplify right side
    39,919.38x = 1,212,704,841.29
  5. Step 5: Solve for x
    x = 1,212,704,841.29/39,919.38
  6. Step 6: Final answer
    x = 30,378.85

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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.