Home / 38,145.66-57,205.53-19,418.46

Finding the Fourth Proportional to 38,145.66, 57,205.53 and 19,418.46

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Solution

The fourth proportional to 38,145.66, 57,205.53 and 19,418.46 is: 29,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,145.66 : 57,205.53 = 19,418.46 : x
  2. Step 2: Convert to fraction form
    38,145.66/57,205.53 = 19,418.46/x
  3. Step 3: Cross multiply
    38,145.66x = 57,205.53 × 19,418.46
  4. Step 4: Simplify right side
    38,145.66x = 1,110,843,296.08
  5. Step 5: Solve for x
    x = 1,110,843,296.08/38,145.66
  6. Step 6: Final answer
    x = 29,121.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.