Home / 20,694.24-28,558.80-11,262.96

Finding the Fourth Proportional to 20,694.24, 28,558.80 and 11,262.96

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Solution

The fourth proportional to 20,694.24, 28,558.80 and 11,262.96 is: 15,543.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.24 : 28,558.80 = 11,262.96 : x
  2. Step 2: Convert to fraction form
    20,694.24/28,558.80 = 11,262.96/x
  3. Step 3: Cross multiply
    20,694.24x = 28,558.80 × 11,262.96
  4. Step 4: Simplify right side
    20,694.24x = 321,656,622.05
  5. Step 5: Solve for x
    x = 321,656,622.05/20,694.24
  6. Step 6: Final answer
    x = 15,543.29

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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.