Home / 39,154.80-54,005.68-27,651.20

Finding the Fourth Proportional to 39,154.80, 54,005.68 and 27,651.20

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Solution

The fourth proportional to 39,154.80, 54,005.68 and 27,651.20 is: 38,138.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,154.80 : 54,005.68 = 27,651.20 : x
  2. Step 2: Convert to fraction form
    39,154.80/54,005.68 = 27,651.20/x
  3. Step 3: Cross multiply
    39,154.80x = 54,005.68 × 27,651.20
  4. Step 4: Simplify right side
    39,154.80x = 1,493,321,858.82
  5. Step 5: Solve for x
    x = 1,493,321,858.82/39,154.80
  6. Step 6: Final answer
    x = 38,138.92

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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.