Home / 20,849.82-31,274.72-5,267.44

Finding the Fourth Proportional to 20,849.82, 31,274.72 and 5,267.44

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Solution

The fourth proportional to 20,849.82, 31,274.72 and 5,267.44 is: 7,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.82 : 31,274.72 = 5,267.44 : x
  2. Step 2: Convert to fraction form
    20,849.82/31,274.72 = 5,267.44/x
  3. Step 3: Cross multiply
    20,849.82x = 31,274.72 × 5,267.44
  4. Step 4: Simplify right side
    20,849.82x = 164,737,711.12
  5. Step 5: Solve for x
    x = 164,737,711.12/20,849.82
  6. Step 6: Final answer
    x = 7,901.16

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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.