Home / 20,431.38-30,708.23-16,944.33

Finding the Fourth Proportional to 20,431.38, 30,708.23 and 16,944.33

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Solution

The fourth proportional to 20,431.38, 30,708.23 and 16,944.33 is: 25,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431.38 : 30,708.23 = 16,944.33 : x
  2. Step 2: Convert to fraction form
    20,431.38/30,708.23 = 16,944.33/x
  3. Step 3: Cross multiply
    20,431.38x = 30,708.23 × 16,944.33
  4. Step 4: Simplify right side
    20,431.38x = 520,330,298.11
  5. Step 5: Solve for x
    x = 520,330,298.11/20,431.38
  6. Step 6: Final answer
    x = 25,467.21

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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.