Home / 20,282.91-30,424.44-6,431.91

Finding the Fourth Proportional to 20,282.91, 30,424.44 and 6,431.91

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Solution

The fourth proportional to 20,282.91, 30,424.44 and 6,431.91 is: 9,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,282.91 : 30,424.44 = 6,431.91 : x
  2. Step 2: Convert to fraction form
    20,282.91/30,424.44 = 6,431.91/x
  3. Step 3: Cross multiply
    20,282.91x = 30,424.44 × 6,431.91
  4. Step 4: Simplify right side
    20,282.91x = 195,687,115.64
  5. Step 5: Solve for x
    x = 195,687,115.64/20,282.91
  6. Step 6: Final answer
    x = 9,647.88

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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.