Home / 39,144.60-58,716.18-12,838.68

Finding the Fourth Proportional to 39,144.60, 58,716.18 and 12,838.68

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Solution

The fourth proportional to 39,144.60, 58,716.18 and 12,838.68 is: 19,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,144.60 : 58,716.18 = 12,838.68 : x
  2. Step 2: Convert to fraction form
    39,144.60/58,716.18 = 12,838.68/x
  3. Step 3: Cross multiply
    39,144.60x = 58,716.18 × 12,838.68
  4. Step 4: Simplify right side
    39,144.60x = 753,838,245.84
  5. Step 5: Solve for x
    x = 753,838,245.84/39,144.60
  6. Step 6: Final answer
    x = 19,257.78

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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.