Home / 20,085.44-27,718.11-11,133.09

Finding the Fourth Proportional to 20,085.44, 27,718.11 and 11,133.09

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Solution

The fourth proportional to 20,085.44, 27,718.11 and 11,133.09 is: 15,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.44 : 27,718.11 = 11,133.09 : x
  2. Step 2: Convert to fraction form
    20,085.44/27,718.11 = 11,133.09/x
  3. Step 3: Cross multiply
    20,085.44x = 27,718.11 × 11,133.09
  4. Step 4: Simplify right side
    20,085.44x = 308,588,157.59
  5. Step 5: Solve for x
    x = 308,588,157.59/20,085.44
  6. Step 6: Final answer
    x = 15,363.78

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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.