Home / 20,236.70-27,926.82-11,284.79

Finding the Fourth Proportional to 20,236.70, 27,926.82 and 11,284.79

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Solution

The fourth proportional to 20,236.70, 27,926.82 and 11,284.79 is: 15,573.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.70 : 27,926.82 = 11,284.79 : x
  2. Step 2: Convert to fraction form
    20,236.70/27,926.82 = 11,284.79/x
  3. Step 3: Cross multiply
    20,236.70x = 27,926.82 × 11,284.79
  4. Step 4: Simplify right side
    20,236.70x = 315,148,159.43
  5. Step 5: Solve for x
    x = 315,148,159.43/20,236.70
  6. Step 6: Final answer
    x = 15,573.10

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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.