Home / 20,118.28-30,183.18-6,271.24

Finding the Fourth Proportional to 20,118.28, 30,183.18 and 6,271.24

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Solution

The fourth proportional to 20,118.28, 30,183.18 and 6,271.24 is: 9,408.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.28 : 30,183.18 = 6,271.24 : x
  2. Step 2: Convert to fraction form
    20,118.28/30,183.18 = 6,271.24/x
  3. Step 3: Cross multiply
    20,118.28x = 30,183.18 × 6,271.24
  4. Step 4: Simplify right side
    20,118.28x = 189,285,965.74
  5. Step 5: Solve for x
    x = 189,285,965.74/20,118.28
  6. Step 6: Final answer
    x = 9,408.66

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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.