Home / 20,372.23-28,107.04-11,872.41

Finding the Fourth Proportional to 20,372.23, 28,107.04 and 11,872.41

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Solution

The fourth proportional to 20,372.23, 28,107.04 and 11,872.41 is: 16,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.23 : 28,107.04 = 11,872.41 : x
  2. Step 2: Convert to fraction form
    20,372.23/28,107.04 = 11,872.41/x
  3. Step 3: Cross multiply
    20,372.23x = 28,107.04 × 11,872.41
  4. Step 4: Simplify right side
    20,372.23x = 333,698,291.83
  5. Step 5: Solve for x
    x = 333,698,291.83/20,372.23
  6. Step 6: Final answer
    x = 16,380.05

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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.