Home / 20,795.72-28,704.94-16,554.56

Finding the Fourth Proportional to 20,795.72, 28,704.94 and 16,554.56

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Solution

The fourth proportional to 20,795.72, 28,704.94 and 16,554.56 is: 22,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.72 : 28,704.94 = 16,554.56 : x
  2. Step 2: Convert to fraction form
    20,795.72/28,704.94 = 16,554.56/x
  3. Step 3: Cross multiply
    20,795.72x = 28,704.94 × 16,554.56
  4. Step 4: Simplify right side
    20,795.72x = 475,197,651.53
  5. Step 5: Solve for x
    x = 475,197,651.53/20,795.72
  6. Step 6: Final answer
    x = 22,850.74

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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.