Home / 38,923.20-58,385.68-12,628

Finding the Fourth Proportional to 38,923.20, 58,385.68 and 12,628

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Solution

The fourth proportional to 38,923.20, 58,385.68 and 12,628 is: 18,942.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,923.20 : 58,385.68 = 12,628 : x
  2. Step 2: Convert to fraction form
    38,923.20/58,385.68 = 12,628/x
  3. Step 3: Cross multiply
    38,923.20x = 58,385.68 × 12,628
  4. Step 4: Simplify right side
    38,923.20x = 737,294,367.04
  5. Step 5: Solve for x
    x = 737,294,367.04/38,923.20
  6. Step 6: Final answer
    x = 18,942.29

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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.