Home / 28,719.82-43,071.36-11,185.48

Finding the Fourth Proportional to 28,719.82, 43,071.36 and 11,185.48

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Solution

The fourth proportional to 28,719.82, 43,071.36 and 11,185.48 is: 16,774.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.82 : 43,071.36 = 11,185.48 : x
  2. Step 2: Convert to fraction form
    28,719.82/43,071.36 = 11,185.48/x
  3. Step 3: Cross multiply
    28,719.82x = 43,071.36 × 11,185.48
  4. Step 4: Simplify right side
    28,719.82x = 481,773,835.85
  5. Step 5: Solve for x
    x = 481,773,835.85/28,719.82
  6. Step 6: Final answer
    x = 16,774.96

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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.