Home / 13,425.82-20,142.07-4,660.81

Finding the Fourth Proportional to 13,425.82, 20,142.07 and 4,660.81

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Solution

The fourth proportional to 13,425.82, 20,142.07 and 4,660.81 is: 6,992.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,425.82 : 20,142.07 = 4,660.81 : x
  2. Step 2: Convert to fraction form
    13,425.82/20,142.07 = 4,660.81/x
  3. Step 3: Cross multiply
    13,425.82x = 20,142.07 × 4,660.81
  4. Step 4: Simplify right side
    13,425.82x = 93,878,299.27
  5. Step 5: Solve for x
    x = 93,878,299.27/13,425.82
  6. Step 6: Final answer
    x = 6,992.37

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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.