Home / 20,178.48-27,845.46-11,226.36

Finding the Fourth Proportional to 20,178.48, 27,845.46 and 11,226.36

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Solution

The fourth proportional to 20,178.48, 27,845.46 and 11,226.36 is: 15,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178.48 : 27,845.46 = 11,226.36 : x
  2. Step 2: Convert to fraction form
    20,178.48/27,845.46 = 11,226.36/x
  3. Step 3: Cross multiply
    20,178.48x = 27,845.46 × 11,226.36
  4. Step 4: Simplify right side
    20,178.48x = 312,603,158.33
  5. Step 5: Solve for x
    x = 312,603,158.33/20,178.48
  6. Step 6: Final answer
    x = 15,491.91

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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.