Home / 20,650.06-30,898.54-12,334.60

Finding the Fourth Proportional to 20,650.06, 30,898.54 and 12,334.60

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Solution

The fourth proportional to 20,650.06, 30,898.54 and 12,334.60 is: 18,456.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,650.06 : 30,898.54 = 12,334.60 : x
  2. Step 2: Convert to fraction form
    20,650.06/30,898.54 = 12,334.60/x
  3. Step 3: Cross multiply
    20,650.06x = 30,898.54 × 12,334.60
  4. Step 4: Simplify right side
    20,650.06x = 381,121,131.48
  5. Step 5: Solve for x
    x = 381,121,131.48/20,650.06
  6. Step 6: Final answer
    x = 18,456.18

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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.