Home / 20,226.64-27,912.89-11,274.71

Finding the Fourth Proportional to 20,226.64, 27,912.89 and 11,274.71

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Solution

The fourth proportional to 20,226.64, 27,912.89 and 11,274.71 is: 15,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.64 : 27,912.89 = 11,274.71 : x
  2. Step 2: Convert to fraction form
    20,226.64/27,912.89 = 11,274.71/x
  3. Step 3: Cross multiply
    20,226.64x = 27,912.89 × 11,274.71
  4. Step 4: Simplify right side
    20,226.64x = 314,709,740.01
  5. Step 5: Solve for x
    x = 314,709,740.01/20,226.64
  6. Step 6: Final answer
    x = 15,559.17

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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.