Home / 25,942.75-38,918.99-12,091.75

Finding the Fourth Proportional to 25,942.75, 38,918.99 and 12,091.75

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Solution

The fourth proportional to 25,942.75, 38,918.99 and 12,091.75 is: 18,139.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,942.75 : 38,918.99 = 12,091.75 : x
  2. Step 2: Convert to fraction form
    25,942.75/38,918.99 = 12,091.75/x
  3. Step 3: Cross multiply
    25,942.75x = 38,918.99 × 12,091.75
  4. Step 4: Simplify right side
    25,942.75x = 470,598,697.33
  5. Step 5: Solve for x
    x = 470,598,697.33/25,942.75
  6. Step 6: Final answer
    x = 18,139.89

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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.