Home / 38,169.90-57,196.46-20,403.09

Finding the Fourth Proportional to 38,169.90, 57,196.46 and 20,403.09

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Solution

The fourth proportional to 38,169.90, 57,196.46 and 20,403.09 is: 30,573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,169.90 : 57,196.46 = 20,403.09 : x
  2. Step 2: Convert to fraction form
    38,169.90/57,196.46 = 20,403.09/x
  3. Step 3: Cross multiply
    38,169.90x = 57,196.46 × 20,403.09
  4. Step 4: Simplify right side
    38,169.90x = 1,166,984,521.06
  5. Step 5: Solve for x
    x = 1,166,984,521.06/38,169.90
  6. Step 6: Final answer
    x = 30,573.42

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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.