Home / 20,737.76-31,100.26-5,942.71

Finding the Fourth Proportional to 20,737.76, 31,100.26 and 5,942.71

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Solution

The fourth proportional to 20,737.76, 31,100.26 and 5,942.71 is: 8,912.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,737.76 : 31,100.26 = 5,942.71 : x
  2. Step 2: Convert to fraction form
    20,737.76/31,100.26 = 5,942.71/x
  3. Step 3: Cross multiply
    20,737.76x = 31,100.26 × 5,942.71
  4. Step 4: Simplify right side
    20,737.76x = 184,819,826.10
  5. Step 5: Solve for x
    x = 184,819,826.10/20,737.76
  6. Step 6: Final answer
    x = 8,912.24

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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.