Home / 20,245.08-30,358.82-10,755.34

Finding the Fourth Proportional to 20,245.08, 30,358.82 and 10,755.34

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Solution

The fourth proportional to 20,245.08, 30,358.82 and 10,755.34 is: 16,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.08 : 30,358.82 = 10,755.34 : x
  2. Step 2: Convert to fraction form
    20,245.08/30,358.82 = 10,755.34/x
  3. Step 3: Cross multiply
    20,245.08x = 30,358.82 × 10,755.34
  4. Step 4: Simplify right side
    20,245.08x = 326,519,431.10
  5. Step 5: Solve for x
    x = 326,519,431.10/20,245.08
  6. Step 6: Final answer
    x = 16,128.33

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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.