Home / 28,540.27-42,815.04-8,814.25

Finding the Fourth Proportional to 28,540.27, 42,815.04 and 8,814.25

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Solution

The fourth proportional to 28,540.27, 42,815.04 and 8,814.25 is: 13,222.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.27 : 42,815.04 = 8,814.25 : x
  2. Step 2: Convert to fraction form
    28,540.27/42,815.04 = 8,814.25/x
  3. Step 3: Cross multiply
    28,540.27x = 42,815.04 × 8,814.25
  4. Step 4: Simplify right side
    28,540.27x = 377,382,466.32
  5. Step 5: Solve for x
    x = 377,382,466.32/28,540.27
  6. Step 6: Final answer
    x = 13,222.81

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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.