Home / 20,227.35-27,912.59-11,274.55

Finding the Fourth Proportional to 20,227.35, 27,912.59 and 11,274.55

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Solution

The fourth proportional to 20,227.35, 27,912.59 and 11,274.55 is: 15,558.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,227.35 : 27,912.59 = 11,274.55 : x
  2. Step 2: Convert to fraction form
    20,227.35/27,912.59 = 11,274.55/x
  3. Step 3: Cross multiply
    20,227.35x = 27,912.59 × 11,274.55
  4. Step 4: Simplify right side
    20,227.35x = 314,701,807.71
  5. Step 5: Solve for x
    x = 314,701,807.71/20,227.35
  6. Step 6: Final answer
    x = 15,558.23

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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.