Home / 20,183.40-30,275.10-10,967.40

Finding the Fourth Proportional to 20,183.40, 30,275.10 and 10,967.40

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Solution

The fourth proportional to 20,183.40, 30,275.10 and 10,967.40 is: 16,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,183.40 : 30,275.10 = 10,967.40 : x
  2. Step 2: Convert to fraction form
    20,183.40/30,275.10 = 10,967.40/x
  3. Step 3: Cross multiply
    20,183.40x = 30,275.10 × 10,967.40
  4. Step 4: Simplify right side
    20,183.40x = 332,039,131.74
  5. Step 5: Solve for x
    x = 332,039,131.74/20,183.40
  6. Step 6: Final answer
    x = 16,451.10

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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.