Home / 20,738.27-31,104-8,893.96

Finding the Fourth Proportional to 20,738.27, 31,104 and 8,893.96

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Solution

The fourth proportional to 20,738.27, 31,104 and 8,893.96 is: 13,339.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.27 : 31,104 = 8,893.96 : x
  2. Step 2: Convert to fraction form
    20,738.27/31,104 = 8,893.96/x
  3. Step 3: Cross multiply
    20,738.27x = 31,104 × 8,893.96
  4. Step 4: Simplify right side
    20,738.27x = 276,637,654.08
  5. Step 5: Solve for x
    x = 276,637,654.08/20,738.27
  6. Step 6: Final answer
    x = 13,339.47

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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.