Home / 39,184.66-54,074.64-21,279.66

Finding the Fourth Proportional to 39,184.66, 54,074.64 and 21,279.66

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Solution

The fourth proportional to 39,184.66, 54,074.64 and 21,279.66 is: 29,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,184.66 : 54,074.64 = 21,279.66 : x
  2. Step 2: Convert to fraction form
    39,184.66/54,074.64 = 21,279.66/x
  3. Step 3: Cross multiply
    39,184.66x = 54,074.64 × 21,279.66
  4. Step 4: Simplify right side
    39,184.66x = 1,150,690,015.31
  5. Step 5: Solve for x
    x = 1,150,690,015.31/39,184.66
  6. Step 6: Final answer
    x = 29,365.83

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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.