Home / 19,286.69-28,903.76-11,792.88

Finding the Fourth Proportional to 19,286.69, 28,903.76 and 11,792.88

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Solution

The fourth proportional to 19,286.69, 28,903.76 and 11,792.88 is: 17,673.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.69 : 28,903.76 = 11,792.88 : x
  2. Step 2: Convert to fraction form
    19,286.69/28,903.76 = 11,792.88/x
  3. Step 3: Cross multiply
    19,286.69x = 28,903.76 × 11,792.88
  4. Step 4: Simplify right side
    19,286.69x = 340,858,458.19
  5. Step 5: Solve for x
    x = 340,858,458.19/19,286.69
  6. Step 6: Final answer
    x = 17,673.25

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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.