Home / 20,247.84-30,357.18-12,440.52

Finding the Fourth Proportional to 20,247.84, 30,357.18 and 12,440.52

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Solution

The fourth proportional to 20,247.84, 30,357.18 and 12,440.52 is: 18,651.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.84 : 30,357.18 = 12,440.52 : x
  2. Step 2: Convert to fraction form
    20,247.84/30,357.18 = 12,440.52/x
  3. Step 3: Cross multiply
    20,247.84x = 30,357.18 × 12,440.52
  4. Step 4: Simplify right side
    20,247.84x = 377,659,104.93
  5. Step 5: Solve for x
    x = 377,659,104.93/20,247.84
  6. Step 6: Final answer
    x = 18,651.82

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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.