Home / 20,185.50-30,279.33-6,335.58

Finding the Fourth Proportional to 20,185.50, 30,279.33 and 6,335.58

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Solution

The fourth proportional to 20,185.50, 30,279.33 and 6,335.58 is: 9,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,185.50 : 30,279.33 = 6,335.58 : x
  2. Step 2: Convert to fraction form
    20,185.50/30,279.33 = 6,335.58/x
  3. Step 3: Cross multiply
    20,185.50x = 30,279.33 × 6,335.58
  4. Step 4: Simplify right side
    20,185.50x = 191,837,117.56
  5. Step 5: Solve for x
    x = 191,837,117.56/20,185.50
  6. Step 6: Final answer
    x = 9,503.71

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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.