Home / 20,560.62-28,372.23-12,175.50

Finding the Fourth Proportional to 20,560.62, 28,372.23 and 12,175.50

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Solution

The fourth proportional to 20,560.62, 28,372.23 and 12,175.50 is: 16,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.62 : 28,372.23 = 12,175.50 : x
  2. Step 2: Convert to fraction form
    20,560.62/28,372.23 = 12,175.50/x
  3. Step 3: Cross multiply
    20,560.62x = 28,372.23 × 12,175.50
  4. Step 4: Simplify right side
    20,560.62x = 345,446,086.37
  5. Step 5: Solve for x
    x = 345,446,086.37/20,560.62
  6. Step 6: Final answer
    x = 16,801.35

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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.