Home / 20,524.39-30,786.28-11,162.21

Finding the Fourth Proportional to 20,524.39, 30,786.28 and 11,162.21

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Solution

The fourth proportional to 20,524.39, 30,786.28 and 11,162.21 is: 16,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.39 : 30,786.28 = 11,162.21 : x
  2. Step 2: Convert to fraction form
    20,524.39/30,786.28 = 11,162.21/x
  3. Step 3: Cross multiply
    20,524.39x = 30,786.28 × 11,162.21
  4. Step 4: Simplify right side
    20,524.39x = 343,642,740.64
  5. Step 5: Solve for x
    x = 343,642,740.64/20,524.39
  6. Step 6: Final answer
    x = 16,743.14

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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.