Home / 19,121.82-28,685.84-5,971.47

Finding the Fourth Proportional to 19,121.82, 28,685.84 and 5,971.47

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Solution

The fourth proportional to 19,121.82, 28,685.84 and 5,971.47 is: 8,958.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.82 : 28,685.84 = 5,971.47 : x
  2. Step 2: Convert to fraction form
    19,121.82/28,685.84 = 5,971.47/x
  3. Step 3: Cross multiply
    19,121.82x = 28,685.84 × 5,971.47
  4. Step 4: Simplify right side
    19,121.82x = 171,296,603.13
  5. Step 5: Solve for x
    x = 171,296,603.13/19,121.82
  6. Step 6: Final answer
    x = 8,958.17

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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.