Home / 20,152.08-30,205.92-17,221.44

Finding the Fourth Proportional to 20,152.08, 30,205.92 and 17,221.44

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Solution

The fourth proportional to 20,152.08, 30,205.92 and 17,221.44 is: 25,813.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.08 : 30,205.92 = 17,221.44 : x
  2. Step 2: Convert to fraction form
    20,152.08/30,205.92 = 17,221.44/x
  3. Step 3: Cross multiply
    20,152.08x = 30,205.92 × 17,221.44
  4. Step 4: Simplify right side
    20,152.08x = 520,189,438.92
  5. Step 5: Solve for x
    x = 520,189,438.92/20,152.08
  6. Step 6: Final answer
    x = 25,813.19

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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.