Home / 20,504.48-28,286.17-12,006.77

Finding the Fourth Proportional to 20,504.48, 28,286.17 and 12,006.77

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Solution

The fourth proportional to 20,504.48, 28,286.17 and 12,006.77 is: 16,563.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,504.48 : 28,286.17 = 12,006.77 : x
  2. Step 2: Convert to fraction form
    20,504.48/28,286.17 = 12,006.77/x
  3. Step 3: Cross multiply
    20,504.48x = 28,286.17 × 12,006.77
  4. Step 4: Simplify right side
    20,504.48x = 339,625,365.92
  5. Step 5: Solve for x
    x = 339,625,365.92/20,504.48
  6. Step 6: Final answer
    x = 16,563.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.