Home / 21,228.03-31,829.74-7,183.39

Finding the Fourth Proportional to 21,228.03, 31,829.74 and 7,183.39

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Solution

The fourth proportional to 21,228.03, 31,829.74 and 7,183.39 is: 10,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.03 : 31,829.74 = 7,183.39 : x
  2. Step 2: Convert to fraction form
    21,228.03/31,829.74 = 7,183.39/x
  3. Step 3: Cross multiply
    21,228.03x = 31,829.74 × 7,183.39
  4. Step 4: Simplify right side
    21,228.03x = 228,645,436.02
  5. Step 5: Solve for x
    x = 228,645,436.02/21,228.03
  6. Step 6: Final answer
    x = 10,770.92

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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.