Home / 20,276.09-30,414.14-5,485.37

Finding the Fourth Proportional to 20,276.09, 30,414.14 and 5,485.37

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Solution

The fourth proportional to 20,276.09, 30,414.14 and 5,485.37 is: 8,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276.09 : 30,414.14 = 5,485.37 : x
  2. Step 2: Convert to fraction form
    20,276.09/30,414.14 = 5,485.37/x
  3. Step 3: Cross multiply
    20,276.09x = 30,414.14 × 5,485.37
  4. Step 4: Simplify right side
    20,276.09x = 166,832,631.63
  5. Step 5: Solve for x
    x = 166,832,631.63/20,276.09
  6. Step 6: Final answer
    x = 8,228.05

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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.