Home / 28,904.06-43,356.11-8,127.56

Finding the Fourth Proportional to 28,904.06, 43,356.11 and 8,127.56

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Solution

The fourth proportional to 28,904.06, 43,356.11 and 8,127.56 is: 12,191.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,904.06 : 43,356.11 = 8,127.56 : x
  2. Step 2: Convert to fraction form
    28,904.06/43,356.11 = 8,127.56/x
  3. Step 3: Cross multiply
    28,904.06x = 43,356.11 × 8,127.56
  4. Step 4: Simplify right side
    28,904.06x = 352,379,453.14
  5. Step 5: Solve for x
    x = 352,379,453.14/28,904.06
  6. Step 6: Final answer
    x = 12,191.35

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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.