Home / 20,056.57-27,679.08-11,105.06

Finding the Fourth Proportional to 20,056.57, 27,679.08 and 11,105.06

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Solution

The fourth proportional to 20,056.57, 27,679.08 and 11,105.06 is: 15,325.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.57 : 27,679.08 = 11,105.06 : x
  2. Step 2: Convert to fraction form
    20,056.57/27,679.08 = 11,105.06/x
  3. Step 3: Cross multiply
    20,056.57x = 27,679.08 × 11,105.06
  4. Step 4: Simplify right side
    20,056.57x = 307,377,747.39
  5. Step 5: Solve for x
    x = 307,377,747.39/20,056.57
  6. Step 6: Final answer
    x = 15,325.54

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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.