Home / 28,007.61-41,942.25-20,874.75

Finding the Fourth Proportional to 28,007.61, 41,942.25 and 20,874.75

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Solution

The fourth proportional to 28,007.61, 41,942.25 and 20,874.75 is: 31,260.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007.61 : 41,942.25 = 20,874.75 : x
  2. Step 2: Convert to fraction form
    28,007.61/41,942.25 = 20,874.75/x
  3. Step 3: Cross multiply
    28,007.61x = 41,942.25 × 20,874.75
  4. Step 4: Simplify right side
    28,007.61x = 875,533,983.19
  5. Step 5: Solve for x
    x = 875,533,983.19/28,007.61
  6. Step 6: Final answer
    x = 31,260.57

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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.