Home / 28,911.84-43,369.26-9,191.94

Finding the Fourth Proportional to 28,911.84, 43,369.26 and 9,191.94

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Solution

The fourth proportional to 28,911.84, 43,369.26 and 9,191.94 is: 13,788.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,911.84 : 43,369.26 = 9,191.94 : x
  2. Step 2: Convert to fraction form
    28,911.84/43,369.26 = 9,191.94/x
  3. Step 3: Cross multiply
    28,911.84x = 43,369.26 × 9,191.94
  4. Step 4: Simplify right side
    28,911.84x = 398,647,635.76
  5. Step 5: Solve for x
    x = 398,647,635.76/28,911.84
  6. Step 6: Final answer
    x = 13,788.39

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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.