Home / 20,226.33-27,912.46-11,274.40

Finding the Fourth Proportional to 20,226.33, 27,912.46 and 11,274.40

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Solution

The fourth proportional to 20,226.33, 27,912.46 and 11,274.40 is: 15,558.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.33 : 27,912.46 = 11,274.40 : x
  2. Step 2: Convert to fraction form
    20,226.33/27,912.46 = 11,274.40/x
  3. Step 3: Cross multiply
    20,226.33x = 27,912.46 × 11,274.40
  4. Step 4: Simplify right side
    20,226.33x = 314,696,239.02
  5. Step 5: Solve for x
    x = 314,696,239.02/20,226.33
  6. Step 6: Final answer
    x = 15,558.74

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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.