Home / 13,720.52-20,576.70-5,822.91

Finding the Fourth Proportional to 13,720.52, 20,576.70 and 5,822.91

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Solution

The fourth proportional to 13,720.52, 20,576.70 and 5,822.91 is: 8,732.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720.52 : 20,576.70 = 5,822.91 : x
  2. Step 2: Convert to fraction form
    13,720.52/20,576.70 = 5,822.91/x
  3. Step 3: Cross multiply
    13,720.52x = 20,576.70 × 5,822.91
  4. Step 4: Simplify right side
    13,720.52x = 119,816,272.20
  5. Step 5: Solve for x
    x = 119,816,272.20/13,720.52
  6. Step 6: Final answer
    x = 8,732.63

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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.