Home / 20,714.60-31,054.89-8,229.26

Finding the Fourth Proportional to 20,714.60, 31,054.89 and 8,229.26

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Solution

The fourth proportional to 20,714.60, 31,054.89 and 8,229.26 is: 12,337.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,714.60 : 31,054.89 = 8,229.26 : x
  2. Step 2: Convert to fraction form
    20,714.60/31,054.89 = 8,229.26/x
  3. Step 3: Cross multiply
    20,714.60x = 31,054.89 × 8,229.26
  4. Step 4: Simplify right side
    20,714.60x = 255,558,764.08
  5. Step 5: Solve for x
    x = 255,558,764.08/20,714.60
  6. Step 6: Final answer
    x = 12,337.13

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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.