Home / 20,450.87-30,676.99-5,658.55

Finding the Fourth Proportional to 20,450.87, 30,676.99 and 5,658.55

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Solution

The fourth proportional to 20,450.87, 30,676.99 and 5,658.55 is: 8,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,450.87 : 30,676.99 = 5,658.55 : x
  2. Step 2: Convert to fraction form
    20,450.87/30,676.99 = 5,658.55/x
  3. Step 3: Cross multiply
    20,450.87x = 30,676.99 × 5,658.55
  4. Step 4: Simplify right side
    20,450.87x = 173,587,281.76
  5. Step 5: Solve for x
    x = 173,587,281.76/20,450.87
  6. Step 6: Final answer
    x = 8,488.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.