Home / 20,516.10-28,241.10-17,692.85

Finding the Fourth Proportional to 20,516.10, 28,241.10 and 17,692.85

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Solution

The fourth proportional to 20,516.10, 28,241.10 and 17,692.85 is: 24,354.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.10 : 28,241.10 = 17,692.85 : x
  2. Step 2: Convert to fraction form
    20,516.10/28,241.10 = 17,692.85/x
  3. Step 3: Cross multiply
    20,516.10x = 28,241.10 × 17,692.85
  4. Step 4: Simplify right side
    20,516.10x = 499,665,404.93
  5. Step 5: Solve for x
    x = 499,665,404.93/20,516.10
  6. Step 6: Final answer
    x = 24,354.79

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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.