Home / 20,449.46-30,674.84-5,658.50

Finding the Fourth Proportional to 20,449.46, 30,674.84 and 5,658.50

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Solution

The fourth proportional to 20,449.46, 30,674.84 and 5,658.50 is: 8,487.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.46 : 30,674.84 = 5,658.50 : x
  2. Step 2: Convert to fraction form
    20,449.46/30,674.84 = 5,658.50/x
  3. Step 3: Cross multiply
    20,449.46x = 30,674.84 × 5,658.50
  4. Step 4: Simplify right side
    20,449.46x = 173,573,400.47
  5. Step 5: Solve for x
    x = 173,573,400.47/20,449.46
  6. Step 6: Final answer
    x = 8,487.92

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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.