Home / 20,162.29-30,249.59-10,308.49

Finding the Fourth Proportional to 20,162.29, 30,249.59 and 10,308.49

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Solution

The fourth proportional to 20,162.29, 30,249.59 and 10,308.49 is: 15,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.29 : 30,249.59 = 10,308.49 : x
  2. Step 2: Convert to fraction form
    20,162.29/30,249.59 = 10,308.49/x
  3. Step 3: Cross multiply
    20,162.29x = 30,249.59 × 10,308.49
  4. Step 4: Simplify right side
    20,162.29x = 311,827,532.44
  5. Step 5: Solve for x
    x = 311,827,532.44/20,162.29
  6. Step 6: Final answer
    x = 15,465.88

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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.