Home / 39,946.20-59,919.30-12,240.60

Finding the Fourth Proportional to 39,946.20, 59,919.30 and 12,240.60

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Solution

The fourth proportional to 39,946.20, 59,919.30 and 12,240.60 is: 18,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,946.20 : 59,919.30 = 12,240.60 : x
  2. Step 2: Convert to fraction form
    39,946.20/59,919.30 = 12,240.60/x
  3. Step 3: Cross multiply
    39,946.20x = 59,919.30 × 12,240.60
  4. Step 4: Simplify right side
    39,946.20x = 733,448,183.58
  5. Step 5: Solve for x
    x = 733,448,183.58/39,946.20
  6. Step 6: Final answer
    x = 18,360.90

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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.