Home / 28,816-43,231.30-8,039.50

Finding the Fourth Proportional to 28,816, 43,231.30 and 8,039.50

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Solution

The fourth proportional to 28,816, 43,231.30 and 8,039.50 is: 12,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816 : 43,231.30 = 8,039.50 : x
  2. Step 2: Convert to fraction form
    28,816/43,231.30 = 8,039.50/x
  3. Step 3: Cross multiply
    28,816x = 43,231.30 × 8,039.50
  4. Step 4: Simplify right side
    28,816x = 347,558,036.35
  5. Step 5: Solve for x
    x = 347,558,036.35/28,816
  6. Step 6: Final answer
    x = 12,061.29

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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.