Home / 31,849.68-47,774.38-8,157.18

Finding the Fourth Proportional to 31,849.68, 47,774.38 and 8,157.18

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Solution

The fourth proportional to 31,849.68, 47,774.38 and 8,157.18 is: 12,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.68 : 47,774.38 = 8,157.18 : x
  2. Step 2: Convert to fraction form
    31,849.68/47,774.38 = 8,157.18/x
  3. Step 3: Cross multiply
    31,849.68x = 47,774.38 × 8,157.18
  4. Step 4: Simplify right side
    31,849.68x = 389,704,217.05
  5. Step 5: Solve for x
    x = 389,704,217.05/31,849.68
  6. Step 6: Final answer
    x = 12,235.73

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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.