Home / 19,119.38-28,697.32-11,738.25

Finding the Fourth Proportional to 19,119.38, 28,697.32 and 11,738.25

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Solution

The fourth proportional to 19,119.38, 28,697.32 and 11,738.25 is: 17,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.38 : 28,697.32 = 11,738.25 : x
  2. Step 2: Convert to fraction form
    19,119.38/28,697.32 = 11,738.25/x
  3. Step 3: Cross multiply
    19,119.38x = 28,697.32 × 11,738.25
  4. Step 4: Simplify right side
    19,119.38x = 336,856,394.76
  5. Step 5: Solve for x
    x = 336,856,394.76/19,119.38
  6. Step 6: Final answer
    x = 17,618.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.