Home / 13,921.56-20,880.42-5,035.92

Finding the Fourth Proportional to 13,921.56, 20,880.42 and 5,035.92

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Solution

The fourth proportional to 13,921.56, 20,880.42 and 5,035.92 is: 7,553.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.56 : 20,880.42 = 5,035.92 : x
  2. Step 2: Convert to fraction form
    13,921.56/20,880.42 = 5,035.92/x
  3. Step 3: Cross multiply
    13,921.56x = 20,880.42 × 5,035.92
  4. Step 4: Simplify right side
    13,921.56x = 105,152,124.69
  5. Step 5: Solve for x
    x = 105,152,124.69/13,921.56
  6. Step 6: Final answer
    x = 7,553.19

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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.