Home / 20,274.75-30,411.99-5,485.19

Finding the Fourth Proportional to 20,274.75, 30,411.99 and 5,485.19

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Solution

The fourth proportional to 20,274.75, 30,411.99 and 5,485.19 is: 8,227.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,274.75 : 30,411.99 = 5,485.19 : x
  2. Step 2: Convert to fraction form
    20,274.75/30,411.99 = 5,485.19/x
  3. Step 3: Cross multiply
    20,274.75x = 30,411.99 × 5,485.19
  4. Step 4: Simplify right side
    20,274.75x = 166,815,391.37
  5. Step 5: Solve for x
    x = 166,815,391.37/20,274.75
  6. Step 6: Final answer
    x = 8,227.74

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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.