Home / 39,107.80-58,664.92-12,811.96

Finding the Fourth Proportional to 39,107.80, 58,664.92 and 12,811.96

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Solution

The fourth proportional to 39,107.80, 58,664.92 and 12,811.96 is: 19,218.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,107.80 : 58,664.92 = 12,811.96 : x
  2. Step 2: Convert to fraction form
    39,107.80/58,664.92 = 12,811.96/x
  3. Step 3: Cross multiply
    39,107.80x = 58,664.92 × 12,811.96
  4. Step 4: Simplify right side
    39,107.80x = 751,612,608.44
  5. Step 5: Solve for x
    x = 751,612,608.44/39,107.80
  6. Step 6: Final answer
    x = 19,218.99

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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.