Home / 20,081.10-27,711.14-11,583.56

Finding the Fourth Proportional to 20,081.10, 27,711.14 and 11,583.56

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Solution

The fourth proportional to 20,081.10, 27,711.14 and 11,583.56 is: 15,984.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.10 : 27,711.14 = 11,583.56 : x
  2. Step 2: Convert to fraction form
    20,081.10/27,711.14 = 11,583.56/x
  3. Step 3: Cross multiply
    20,081.10x = 27,711.14 × 11,583.56
  4. Step 4: Simplify right side
    20,081.10x = 320,993,652.86
  5. Step 5: Solve for x
    x = 320,993,652.86/20,081.10
  6. Step 6: Final answer
    x = 15,984.86

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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.