Home / 20,324.45-28,046.21-11,826.63

Finding the Fourth Proportional to 20,324.45, 28,046.21 and 11,826.63

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Solution

The fourth proportional to 20,324.45, 28,046.21 and 11,826.63 is: 16,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.45 : 28,046.21 = 11,826.63 : x
  2. Step 2: Convert to fraction form
    20,324.45/28,046.21 = 11,826.63/x
  3. Step 3: Cross multiply
    20,324.45x = 28,046.21 × 11,826.63
  4. Step 4: Simplify right side
    20,324.45x = 331,692,089.44
  5. Step 5: Solve for x
    x = 331,692,089.44/20,324.45
  6. Step 6: Final answer
    x = 16,319.85

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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.