Home / 20,243.89-30,362.39-5,449.51

Finding the Fourth Proportional to 20,243.89, 30,362.39 and 5,449.51

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Solution

The fourth proportional to 20,243.89, 30,362.39 and 5,449.51 is: 8,173.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.89 : 30,362.39 = 5,449.51 : x
  2. Step 2: Convert to fraction form
    20,243.89/30,362.39 = 5,449.51/x
  3. Step 3: Cross multiply
    20,243.89x = 30,362.39 × 5,449.51
  4. Step 4: Simplify right side
    20,243.89x = 165,460,147.93
  5. Step 5: Solve for x
    x = 165,460,147.93/20,243.89
  6. Step 6: Final answer
    x = 8,173.34

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1.5x scale

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.