Home / 20,697.20-31,037.96-8,850.48

Finding the Fourth Proportional to 20,697.20, 31,037.96 and 8,850.48

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Solution

The fourth proportional to 20,697.20, 31,037.96 and 8,850.48 is: 13,272.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.20 : 31,037.96 = 8,850.48 : x
  2. Step 2: Convert to fraction form
    20,697.20/31,037.96 = 8,850.48/x
  3. Step 3: Cross multiply
    20,697.20x = 31,037.96 × 8,850.48
  4. Step 4: Simplify right side
    20,697.20x = 274,700,689.03
  5. Step 5: Solve for x
    x = 274,700,689.03/20,697.20
  6. Step 6: Final answer
    x = 13,272.36

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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.