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Finding the Fourth Proportional to 39,289.40, 54,216.21 and 22,289.58

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Solution

The fourth proportional to 39,289.40, 54,216.21 and 22,289.58 is: 30,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,289.40 : 54,216.21 = 22,289.58 : x
  2. Step 2: Convert to fraction form
    39,289.40/54,216.21 = 22,289.58/x
  3. Step 3: Cross multiply
    39,289.40x = 54,216.21 × 22,289.58
  4. Step 4: Simplify right side
    39,289.40x = 1,208,456,550.09
  5. Step 5: Solve for x
    x = 1,208,456,550.09/39,289.40
  6. Step 6: Final answer
    x = 30,757.83

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