Home / 20,682.14-28,551.04-13,234.46

Finding the Fourth Proportional to 20,682.14, 28,551.04 and 13,234.46

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Solution

The fourth proportional to 20,682.14, 28,551.04 and 13,234.46 is: 18,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.14 : 28,551.04 = 13,234.46 : x
  2. Step 2: Convert to fraction form
    20,682.14/28,551.04 = 13,234.46/x
  3. Step 3: Cross multiply
    20,682.14x = 28,551.04 × 13,234.46
  4. Step 4: Simplify right side
    20,682.14x = 377,857,596.84
  5. Step 5: Solve for x
    x = 377,857,596.84/20,682.14
  6. Step 6: Final answer
    x = 18,269.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.