Home / 19,388.82-29,077.91-5,345.55

Finding the Fourth Proportional to 19,388.82, 29,077.91 and 5,345.55

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Solution

The fourth proportional to 19,388.82, 29,077.91 and 5,345.55 is: 8,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,388.82 : 29,077.91 = 5,345.55 : x
  2. Step 2: Convert to fraction form
    19,388.82/29,077.91 = 5,345.55/x
  3. Step 3: Cross multiply
    19,388.82x = 29,077.91 × 5,345.55
  4. Step 4: Simplify right side
    19,388.82x = 155,437,395.07
  5. Step 5: Solve for x
    x = 155,437,395.07/19,388.82
  6. Step 6: Final answer
    x = 8,016.86

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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.