Home / 38,630.40-57,945.60-23,791.20

Finding the Fourth Proportional to 38,630.40, 57,945.60 and 23,791.20

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Solution

The fourth proportional to 38,630.40, 57,945.60 and 23,791.20 is: 35,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,630.40 : 57,945.60 = 23,791.20 : x
  2. Step 2: Convert to fraction form
    38,630.40/57,945.60 = 23,791.20/x
  3. Step 3: Cross multiply
    38,630.40x = 57,945.60 × 23,791.20
  4. Step 4: Simplify right side
    38,630.40x = 1,378,595,358.72
  5. Step 5: Solve for x
    x = 1,378,595,358.72/38,630.40
  6. Step 6: Final answer
    x = 35,686.80

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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.