Home / 39,525.60-54,546.57-21,621.09

Finding the Fourth Proportional to 39,525.60, 54,546.57 and 21,621.09

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Solution

The fourth proportional to 39,525.60, 54,546.57 and 21,621.09 is: 29,837.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,525.60 : 54,546.57 = 21,621.09 : x
  2. Step 2: Convert to fraction form
    39,525.60/54,546.57 = 21,621.09/x
  3. Step 3: Cross multiply
    39,525.60x = 54,546.57 × 21,621.09
  4. Step 4: Simplify right side
    39,525.60x = 1,179,356,299.16
  5. Step 5: Solve for x
    x = 1,179,356,299.16/39,525.60
  6. Step 6: Final answer
    x = 29,837.78

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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.