Home / 13,750.26-20,623.53-3,890.31

Finding the Fourth Proportional to 13,750.26, 20,623.53 and 3,890.31

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Solution

The fourth proportional to 13,750.26, 20,623.53 and 3,890.31 is: 5,834.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.26 : 20,623.53 = 3,890.31 : x
  2. Step 2: Convert to fraction form
    13,750.26/20,623.53 = 3,890.31/x
  3. Step 3: Cross multiply
    13,750.26x = 20,623.53 × 3,890.31
  4. Step 4: Simplify right side
    13,750.26x = 80,231,924.99
  5. Step 5: Solve for x
    x = 80,231,924.99/13,750.26
  6. Step 6: Final answer
    x = 5,834.94

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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.