Home / 39,528.99-54,550.80-21,625.11

Finding the Fourth Proportional to 39,528.99, 54,550.80 and 21,625.11

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Solution

The fourth proportional to 39,528.99, 54,550.80 and 21,625.11 is: 29,843.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,528.99 : 54,550.80 = 21,625.11 : x
  2. Step 2: Convert to fraction form
    39,528.99/54,550.80 = 21,625.11/x
  3. Step 3: Cross multiply
    39,528.99x = 54,550.80 × 21,625.11
  4. Step 4: Simplify right side
    39,528.99x = 1,179,667,050.59
  5. Step 5: Solve for x
    x = 1,179,667,050.59/39,528.99
  6. Step 6: Final answer
    x = 29,843.09

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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.