Home / 39,190.37-54,083.11-21,285.73

Finding the Fourth Proportional to 39,190.37, 54,083.11 and 21,285.73

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Solution

The fourth proportional to 39,190.37, 54,083.11 and 21,285.73 is: 29,374.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.37 : 54,083.11 = 21,285.73 : x
  2. Step 2: Convert to fraction form
    39,190.37/54,083.11 = 21,285.73/x
  3. Step 3: Cross multiply
    39,190.37x = 54,083.11 × 21,285.73
  4. Step 4: Simplify right side
    39,190.37x = 1,151,198,477.02
  5. Step 5: Solve for x
    x = 1,151,198,477.02/39,190.37
  6. Step 6: Final answer
    x = 29,374.52

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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.