Home / 20,822.42-31,235.61-5,829.54

Finding the Fourth Proportional to 20,822.42, 31,235.61 and 5,829.54

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Solution

The fourth proportional to 20,822.42, 31,235.61 and 5,829.54 is: 8,744.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,822.42 : 31,235.61 = 5,829.54 : x
  2. Step 2: Convert to fraction form
    20,822.42/31,235.61 = 5,829.54/x
  3. Step 3: Cross multiply
    20,822.42x = 31,235.61 × 5,829.54
  4. Step 4: Simplify right side
    20,822.42x = 182,089,237.92
  5. Step 5: Solve for x
    x = 182,089,237.92/20,822.42
  6. Step 6: Final answer
    x = 8,744.87

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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.