Home / 21,183.75-31,777.53-5,601.39

Finding the Fourth Proportional to 21,183.75, 31,777.53 and 5,601.39

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Solution

The fourth proportional to 21,183.75, 31,777.53 and 5,601.39 is: 8,402.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.75 : 31,777.53 = 5,601.39 : x
  2. Step 2: Convert to fraction form
    21,183.75/31,777.53 = 5,601.39/x
  3. Step 3: Cross multiply
    21,183.75x = 31,777.53 × 5,601.39
  4. Step 4: Simplify right side
    21,183.75x = 177,998,338.77
  5. Step 5: Solve for x
    x = 177,998,338.77/21,183.75
  6. Step 6: Final answer
    x = 8,402.59

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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.