Home / 15,834.89-23,789.30-13,620.56

Finding the Fourth Proportional to 15,834.89, 23,789.30 and 13,620.56

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Solution

The fourth proportional to 15,834.89, 23,789.30 and 13,620.56 is: 20,462.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.89 : 23,789.30 = 13,620.56 : x
  2. Step 2: Convert to fraction form
    15,834.89/23,789.30 = 13,620.56/x
  3. Step 3: Cross multiply
    15,834.89x = 23,789.30 × 13,620.56
  4. Step 4: Simplify right side
    15,834.89x = 324,023,400.96
  5. Step 5: Solve for x
    x = 324,023,400.96/15,834.89
  6. Step 6: Final answer
    x = 20,462.62

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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.