Home / 20,069.92-27,697.44-11,689.12

Finding the Fourth Proportional to 20,069.92, 27,697.44 and 11,689.12

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Solution

The fourth proportional to 20,069.92, 27,697.44 and 11,689.12 is: 16,131.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.92 : 27,697.44 = 11,689.12 : x
  2. Step 2: Convert to fraction form
    20,069.92/27,697.44 = 11,689.12/x
  3. Step 3: Cross multiply
    20,069.92x = 27,697.44 × 11,689.12
  4. Step 4: Simplify right side
    20,069.92x = 323,758,699.85
  5. Step 5: Solve for x
    x = 323,758,699.85/20,069.92
  6. Step 6: Final answer
    x = 16,131.54

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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.