Home / 19,185.35-28,781.94-8,092.08

Finding the Fourth Proportional to 19,185.35, 28,781.94 and 8,092.08

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Solution

The fourth proportional to 19,185.35, 28,781.94 and 8,092.08 is: 12,139.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,185.35 : 28,781.94 = 8,092.08 : x
  2. Step 2: Convert to fraction form
    19,185.35/28,781.94 = 8,092.08/x
  3. Step 3: Cross multiply
    19,185.35x = 28,781.94 × 8,092.08
  4. Step 4: Simplify right side
    19,185.35x = 232,905,812.76
  5. Step 5: Solve for x
    x = 232,905,812.76/19,185.35
  6. Step 6: Final answer
    x = 12,139.77

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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.