Home / 20,272.50-30,410.13-6,231.66

Finding the Fourth Proportional to 20,272.50, 30,410.13 and 6,231.66

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Solution

The fourth proportional to 20,272.50, 30,410.13 and 6,231.66 is: 9,347.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.50 : 30,410.13 = 6,231.66 : x
  2. Step 2: Convert to fraction form
    20,272.50/30,410.13 = 6,231.66/x
  3. Step 3: Cross multiply
    20,272.50x = 30,410.13 × 6,231.66
  4. Step 4: Simplify right side
    20,272.50x = 189,505,590.72
  5. Step 5: Solve for x
    x = 189,505,590.72/20,272.50
  6. Step 6: Final answer
    x = 9,347.91

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1.5x scale

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.