Home / 20,769.48-28,658.04-11,694.12

Finding the Fourth Proportional to 20,769.48, 28,658.04 and 11,694.12

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Solution

The fourth proportional to 20,769.48, 28,658.04 and 11,694.12 is: 16,135.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769.48 : 28,658.04 = 11,694.12 : x
  2. Step 2: Convert to fraction form
    20,769.48/28,658.04 = 11,694.12/x
  3. Step 3: Cross multiply
    20,769.48x = 28,658.04 × 11,694.12
  4. Step 4: Simplify right side
    20,769.48x = 335,130,558.72
  5. Step 5: Solve for x
    x = 335,130,558.72/20,769.48
  6. Step 6: Final answer
    x = 16,135.72

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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.