Home / 38,168.90-57,194.96-20,402.09

Finding the Fourth Proportional to 38,168.90, 57,194.96 and 20,402.09

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Solution

The fourth proportional to 38,168.90, 57,194.96 and 20,402.09 is: 30,571.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,168.90 : 57,194.96 = 20,402.09 : x
  2. Step 2: Convert to fraction form
    38,168.90/57,194.96 = 20,402.09/x
  3. Step 3: Cross multiply
    38,168.90x = 57,194.96 × 20,402.09
  4. Step 4: Simplify right side
    38,168.90x = 1,166,896,435.49
  5. Step 5: Solve for x
    x = 1,166,896,435.49/38,168.90
  6. Step 6: Final answer
    x = 30,571.92

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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.