Home / 20,896.06-28,836.04-11,697.48

Finding the Fourth Proportional to 20,896.06, 28,836.04 and 11,697.48

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Solution

The fourth proportional to 20,896.06, 28,836.04 and 11,697.48 is: 16,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.06 : 28,836.04 = 11,697.48 : x
  2. Step 2: Convert to fraction form
    20,896.06/28,836.04 = 11,697.48/x
  3. Step 3: Cross multiply
    20,896.06x = 28,836.04 × 11,697.48
  4. Step 4: Simplify right side
    20,896.06x = 337,308,942.69
  5. Step 5: Solve for x
    x = 337,308,942.69/20,896.06
  6. Step 6: Final answer
    x = 16,142.23

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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.