Home / 39,198.12-54,093.79-21,293.27

Finding the Fourth Proportional to 39,198.12, 54,093.79 and 21,293.27

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Solution

The fourth proportional to 39,198.12, 54,093.79 and 21,293.27 is: 29,384.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.12 : 54,093.79 = 21,293.27 : x
  2. Step 2: Convert to fraction form
    39,198.12/54,093.79 = 21,293.27/x
  3. Step 3: Cross multiply
    39,198.12x = 54,093.79 × 21,293.27
  4. Step 4: Simplify right side
    39,198.12x = 1,151,833,675.79
  5. Step 5: Solve for x
    x = 1,151,833,675.79/39,198.12
  6. Step 6: Final answer
    x = 29,384.92

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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.