Home / 20,950.48-28,912.26-11,519.07

Finding the Fourth Proportional to 20,950.48, 28,912.26 and 11,519.07

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Solution

The fourth proportional to 20,950.48, 28,912.26 and 11,519.07 is: 15,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,950.48 : 28,912.26 = 11,519.07 : x
  2. Step 2: Convert to fraction form
    20,950.48/28,912.26 = 11,519.07/x
  3. Step 3: Cross multiply
    20,950.48x = 28,912.26 × 11,519.07
  4. Step 4: Simplify right side
    20,950.48x = 333,042,346.80
  5. Step 5: Solve for x
    x = 333,042,346.80/20,950.48
  6. Step 6: Final answer
    x = 15,896.65

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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.