Home / 39,860.43-59,786.98-12,158.43

Finding the Fourth Proportional to 39,860.43, 59,786.98 and 12,158.43

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Solution

The fourth proportional to 39,860.43, 59,786.98 and 12,158.43 is: 18,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,860.43 : 59,786.98 = 12,158.43 : x
  2. Step 2: Convert to fraction form
    39,860.43/59,786.98 = 12,158.43/x
  3. Step 3: Cross multiply
    39,860.43x = 59,786.98 × 12,158.43
  4. Step 4: Simplify right side
    39,860.43x = 726,915,556.64
  5. Step 5: Solve for x
    x = 726,915,556.64/39,860.43
  6. Step 6: Final answer
    x = 18,236.52

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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.