Home / 38,195.78-57,293.46-20,776.32

Finding the Fourth Proportional to 38,195.78, 57,293.46 and 20,776.32

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Solution

The fourth proportional to 38,195.78, 57,293.46 and 20,776.32 is: 31,164.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,195.78 : 57,293.46 = 20,776.32 : x
  2. Step 2: Convert to fraction form
    38,195.78/57,293.46 = 20,776.32/x
  3. Step 3: Cross multiply
    38,195.78x = 57,293.46 × 20,776.32
  4. Step 4: Simplify right side
    38,195.78x = 1,190,347,258.87
  5. Step 5: Solve for x
    x = 1,190,347,258.87/38,195.78
  6. Step 6: Final answer
    x = 31,164.37

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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.