Home / 28,790.32-43,185.48-11,247.84

Finding the Fourth Proportional to 28,790.32, 43,185.48 and 11,247.84

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Solution

The fourth proportional to 28,790.32, 43,185.48 and 11,247.84 is: 16,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,790.32 : 43,185.48 = 11,247.84 : x
  2. Step 2: Convert to fraction form
    28,790.32/43,185.48 = 11,247.84/x
  3. Step 3: Cross multiply
    28,790.32x = 43,185.48 × 11,247.84
  4. Step 4: Simplify right side
    28,790.32x = 485,743,369.36
  5. Step 5: Solve for x
    x = 485,743,369.36/28,790.32
  6. Step 6: Final answer
    x = 16,871.76

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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.