Home / 19,190.87-28,817.57-11,842.04

Finding the Fourth Proportional to 19,190.87, 28,817.57 and 11,842.04

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Solution

The fourth proportional to 19,190.87, 28,817.57 and 11,842.04 is: 17,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.87 : 28,817.57 = 11,842.04 : x
  2. Step 2: Convert to fraction form
    19,190.87/28,817.57 = 11,842.04/x
  3. Step 3: Cross multiply
    19,190.87x = 28,817.57 × 11,842.04
  4. Step 4: Simplify right side
    19,190.87x = 341,258,757.43
  5. Step 5: Solve for x
    x = 341,258,757.43/19,190.87
  6. Step 6: Final answer
    x = 17,782.35

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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.