Home / 20,731.42-31,096.23-6,692.14

Finding the Fourth Proportional to 20,731.42, 31,096.23 and 6,692.14

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Solution

The fourth proportional to 20,731.42, 31,096.23 and 6,692.14 is: 10,037.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.42 : 31,096.23 = 6,692.14 : x
  2. Step 2: Convert to fraction form
    20,731.42/31,096.23 = 6,692.14/x
  3. Step 3: Cross multiply
    20,731.42x = 31,096.23 × 6,692.14
  4. Step 4: Simplify right side
    20,731.42x = 208,100,324.63
  5. Step 5: Solve for x
    x = 208,100,324.63/20,731.42
  6. Step 6: Final answer
    x = 10,037.92

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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.