Home / 19,170.06-28,755.24-6,690.03

Finding the Fourth Proportional to 19,170.06, 28,755.24 and 6,690.03

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Solution

The fourth proportional to 19,170.06, 28,755.24 and 6,690.03 is: 10,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,170.06 : 28,755.24 = 6,690.03 : x
  2. Step 2: Convert to fraction form
    19,170.06/28,755.24 = 6,690.03/x
  3. Step 3: Cross multiply
    19,170.06x = 28,755.24 × 6,690.03
  4. Step 4: Simplify right side
    19,170.06x = 192,373,418.26
  5. Step 5: Solve for x
    x = 192,373,418.26/19,170.06
  6. Step 6: Final answer
    x = 10,035.10

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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.