Home / 39,194.78-54,089.00-21,289.93

Finding the Fourth Proportional to 39,194.78, 54,089.00 and 21,289.93

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Solution

The fourth proportional to 39,194.78, 54,089.00 and 21,289.93 is: 29,380.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,194.78 : 54,089.00 = 21,289.93 : x
  2. Step 2: Convert to fraction form
    39,194.78/54,089.00 = 21,289.93/x
  3. Step 3: Cross multiply
    39,194.78x = 54,089.00 × 21,289.93
  4. Step 4: Simplify right side
    39,194.78x = 1,151,550,861.94
  5. Step 5: Solve for x
    x = 1,151,550,861.94/39,194.78
  6. Step 6: Final answer
    x = 29,380.21

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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.