Home / 20,528.91-30,793.01-11,166.71

Finding the Fourth Proportional to 20,528.91, 30,793.01 and 11,166.71

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Solution

The fourth proportional to 20,528.91, 30,793.01 and 11,166.71 is: 16,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.91 : 30,793.01 = 11,166.71 : x
  2. Step 2: Convert to fraction form
    20,528.91/30,793.01 = 11,166.71/x
  3. Step 3: Cross multiply
    20,528.91x = 30,793.01 × 11,166.71
  4. Step 4: Simplify right side
    20,528.91x = 343,856,402.90
  5. Step 5: Solve for x
    x = 343,856,402.90/20,528.91
  6. Step 6: Final answer
    x = 16,749.86

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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.