Home / 20,684.21-28,472.09-18,027

Finding the Fourth Proportional to 20,684.21, 28,472.09 and 18,027

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Solution

The fourth proportional to 20,684.21, 28,472.09 and 18,027 is: 24,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.21 : 28,472.09 = 18,027 : x
  2. Step 2: Convert to fraction form
    20,684.21/28,472.09 = 18,027/x
  3. Step 3: Cross multiply
    20,684.21x = 28,472.09 × 18,027
  4. Step 4: Simplify right side
    20,684.21x = 513,266,276.30
  5. Step 5: Solve for x
    x = 513,266,276.30/20,684.21
  6. Step 6: Final answer
    x = 24,814.41

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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.