Home / 20,085.10-27,717.06-11,132.60

Finding the Fourth Proportional to 20,085.10, 27,717.06 and 11,132.60

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Solution

The fourth proportional to 20,085.10, 27,717.06 and 11,132.60 is: 15,362.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.10 : 27,717.06 = 11,132.60 : x
  2. Step 2: Convert to fraction form
    20,085.10/27,717.06 = 11,132.60/x
  3. Step 3: Cross multiply
    20,085.10x = 27,717.06 × 11,132.60
  4. Step 4: Simplify right side
    20,085.10x = 308,562,942.16
  5. Step 5: Solve for x
    x = 308,562,942.16/20,085.10
  6. Step 6: Final answer
    x = 15,362.78

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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.