Home / 20,396.52-30,591.90-6,543.72

Finding the Fourth Proportional to 20,396.52, 30,591.90 and 6,543.72

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Solution

The fourth proportional to 20,396.52, 30,591.90 and 6,543.72 is: 9,814.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.52 : 30,591.90 = 6,543.72 : x
  2. Step 2: Convert to fraction form
    20,396.52/30,591.90 = 6,543.72/x
  3. Step 3: Cross multiply
    20,396.52x = 30,591.90 × 6,543.72
  4. Step 4: Simplify right side
    20,396.52x = 200,184,827.87
  5. Step 5: Solve for x
    x = 200,184,827.87/20,396.52
  6. Step 6: Final answer
    x = 9,814.66

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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.