Home / 28,486.35-42,716.54-11,836.44

Finding the Fourth Proportional to 28,486.35, 42,716.54 and 11,836.44

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Solution

The fourth proportional to 28,486.35, 42,716.54 and 11,836.44 is: 17,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.35 : 42,716.54 = 11,836.44 : x
  2. Step 2: Convert to fraction form
    28,486.35/42,716.54 = 11,836.44/x
  3. Step 3: Cross multiply
    28,486.35x = 42,716.54 × 11,836.44
  4. Step 4: Simplify right side
    28,486.35x = 505,611,703.54
  5. Step 5: Solve for x
    x = 505,611,703.54/28,486.35
  6. Step 6: Final answer
    x = 17,749.26

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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.