Home / 20,235.88-30,353.68-5,443.56

Finding the Fourth Proportional to 20,235.88, 30,353.68 and 5,443.56

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Solution

The fourth proportional to 20,235.88, 30,353.68 and 5,443.56 is: 8,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.88 : 30,353.68 = 5,443.56 : x
  2. Step 2: Convert to fraction form
    20,235.88/30,353.68 = 5,443.56/x
  3. Step 3: Cross multiply
    20,235.88x = 30,353.68 × 5,443.56
  4. Step 4: Simplify right side
    20,235.88x = 165,232,078.30
  5. Step 5: Solve for x
    x = 165,232,078.30/20,235.88
  6. Step 6: Final answer
    x = 8,165.30

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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.