Home / 28,661.09-43,015.32-14,631.48

Finding the Fourth Proportional to 28,661.09, 43,015.32 and 14,631.48

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Solution

The fourth proportional to 28,661.09, 43,015.32 and 14,631.48 is: 21,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,661.09 : 43,015.32 = 14,631.48 : x
  2. Step 2: Convert to fraction form
    28,661.09/43,015.32 = 14,631.48/x
  3. Step 3: Cross multiply
    28,661.09x = 43,015.32 × 14,631.48
  4. Step 4: Simplify right side
    28,661.09x = 629,377,794.27
  5. Step 5: Solve for x
    x = 629,377,794.27/28,661.09
  6. Step 6: Final answer
    x = 21,959.32

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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.