Home / 39,190.44-54,083.20-21,285.80

Finding the Fourth Proportional to 39,190.44, 54,083.20 and 21,285.80

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Solution

The fourth proportional to 39,190.44, 54,083.20 and 21,285.80 is: 29,374.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.44 : 54,083.20 = 21,285.80 : x
  2. Step 2: Convert to fraction form
    39,190.44/54,083.20 = 21,285.80/x
  3. Step 3: Cross multiply
    39,190.44x = 54,083.20 × 21,285.80
  4. Step 4: Simplify right side
    39,190.44x = 1,151,203,854.93
  5. Step 5: Solve for x
    x = 1,151,203,854.93/39,190.44
  6. Step 6: Final answer
    x = 29,374.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.