Home / 20,680.68-31,025.88-5,889.27

Finding the Fourth Proportional to 20,680.68, 31,025.88 and 5,889.27

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Solution

The fourth proportional to 20,680.68, 31,025.88 and 5,889.27 is: 8,835.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.68 : 31,025.88 = 5,889.27 : x
  2. Step 2: Convert to fraction form
    20,680.68/31,025.88 = 5,889.27/x
  3. Step 3: Cross multiply
    20,680.68x = 31,025.88 × 5,889.27
  4. Step 4: Simplify right side
    20,680.68x = 182,719,784.31
  5. Step 5: Solve for x
    x = 182,719,784.31/20,680.68
  6. Step 6: Final answer
    x = 8,835.29

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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.