Home / 28,914.15-43,369.71-9,191.19

Finding the Fourth Proportional to 28,914.15, 43,369.71 and 9,191.19

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Solution

The fourth proportional to 28,914.15, 43,369.71 and 9,191.19 is: 13,786.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,914.15 : 43,369.71 = 9,191.19 : x
  2. Step 2: Convert to fraction form
    28,914.15/43,369.71 = 9,191.19/x
  3. Step 3: Cross multiply
    28,914.15x = 43,369.71 × 9,191.19
  4. Step 4: Simplify right side
    28,914.15x = 398,619,244.85
  5. Step 5: Solve for x
    x = 398,619,244.85/28,914.15
  6. Step 6: Final answer
    x = 13,786.30

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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.