Home / 19,873.28-27,423.56-11,375.57

Finding the Fourth Proportional to 19,873.28, 27,423.56 and 11,375.57

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Solution

The fourth proportional to 19,873.28, 27,423.56 and 11,375.57 is: 15,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.28 : 27,423.56 = 11,375.57 : x
  2. Step 2: Convert to fraction form
    19,873.28/27,423.56 = 11,375.57/x
  3. Step 3: Cross multiply
    19,873.28x = 27,423.56 × 11,375.57
  4. Step 4: Simplify right side
    19,873.28x = 311,958,723.43
  5. Step 5: Solve for x
    x = 311,958,723.43/19,873.28
  6. Step 6: Final answer
    x = 15,697.39

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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.