Home / 20,226.57-27,912.80-11,274.65

Finding the Fourth Proportional to 20,226.57, 27,912.80 and 11,274.65

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Solution

The fourth proportional to 20,226.57, 27,912.80 and 11,274.65 is: 15,559.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.57 : 27,912.80 = 11,274.65 : x
  2. Step 2: Convert to fraction form
    20,226.57/27,912.80 = 11,274.65/x
  3. Step 3: Cross multiply
    20,226.57x = 27,912.80 × 11,274.65
  4. Step 4: Simplify right side
    20,226.57x = 314,707,050.52
  5. Step 5: Solve for x
    x = 314,707,050.52/20,226.57
  6. Step 6: Final answer
    x = 15,559.09

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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.