Home / 39,525.12-54,544.05-21,619.80

Finding the Fourth Proportional to 39,525.12, 54,544.05 and 21,619.80

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Solution

The fourth proportional to 39,525.12, 54,544.05 and 21,619.80 is: 29,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,525.12 : 54,544.05 = 21,619.80 : x
  2. Step 2: Convert to fraction form
    39,525.12/54,544.05 = 21,619.80/x
  3. Step 3: Cross multiply
    39,525.12x = 54,544.05 × 21,619.80
  4. Step 4: Simplify right side
    39,525.12x = 1,179,231,452.19
  5. Step 5: Solve for x
    x = 1,179,231,452.19/39,525.12
  6. Step 6: Final answer
    x = 29,834.99

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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.