Home / 38,796.72-58,220.60-21,278.85

Finding the Fourth Proportional to 38,796.72, 58,220.60 and 21,278.85

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Solution

The fourth proportional to 38,796.72, 58,220.60 and 21,278.85 is: 31,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,796.72 : 58,220.60 = 21,278.85 : x
  2. Step 2: Convert to fraction form
    38,796.72/58,220.60 = 21,278.85/x
  3. Step 3: Cross multiply
    38,796.72x = 58,220.60 × 21,278.85
  4. Step 4: Simplify right side
    38,796.72x = 1,238,867,414.31
  5. Step 5: Solve for x
    x = 1,238,867,414.31/38,796.72
  6. Step 6: Final answer
    x = 31,932.27

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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.