Home / 20,580.41-30,866.00-12,262.79

Finding the Fourth Proportional to 20,580.41, 30,866.00 and 12,262.79

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Solution

The fourth proportional to 20,580.41, 30,866.00 and 12,262.79 is: 18,391.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580.41 : 30,866.00 = 12,262.79 : x
  2. Step 2: Convert to fraction form
    20,580.41/30,866.00 = 12,262.79/x
  3. Step 3: Cross multiply
    20,580.41x = 30,866.00 × 12,262.79
  4. Step 4: Simplify right side
    20,580.41x = 378,503,291.99
  5. Step 5: Solve for x
    x = 378,503,291.99/20,580.41
  6. Step 6: Final answer
    x = 18,391.43

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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.