Home / 20,576.27-28,395.25-11,144.83

Finding the Fourth Proportional to 20,576.27, 28,395.25 and 11,144.83

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Solution

The fourth proportional to 20,576.27, 28,395.25 and 11,144.83 is: 15,379.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.27 : 28,395.25 = 11,144.83 : x
  2. Step 2: Convert to fraction form
    20,576.27/28,395.25 = 11,144.83/x
  3. Step 3: Cross multiply
    20,576.27x = 28,395.25 × 11,144.83
  4. Step 4: Simplify right side
    20,576.27x = 316,460,178.33
  5. Step 5: Solve for x
    x = 316,460,178.33/20,576.27
  6. Step 6: Final answer
    x = 15,379.87

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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.