Home / 20,083.48-27,715.26-11,131.12

Finding the Fourth Proportional to 20,083.48, 27,715.26 and 11,131.12

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Solution

The fourth proportional to 20,083.48, 27,715.26 and 11,131.12 is: 15,360.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,083.48 : 27,715.26 = 11,131.12 : x
  2. Step 2: Convert to fraction form
    20,083.48/27,715.26 = 11,131.12/x
  3. Step 3: Cross multiply
    20,083.48x = 27,715.26 × 11,131.12
  4. Step 4: Simplify right side
    20,083.48x = 308,501,961.28
  5. Step 5: Solve for x
    x = 308,501,961.28/20,083.48
  6. Step 6: Final answer
    x = 15,360.98

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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.