Home / 21,183.54-31,775.54-6,392.60

Finding the Fourth Proportional to 21,183.54, 31,775.54 and 6,392.60

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Solution

The fourth proportional to 21,183.54, 31,775.54 and 6,392.60 is: 9,588.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,183.54 : 31,775.54 = 6,392.60 : x
  2. Step 2: Convert to fraction form
    21,183.54/31,775.54 = 6,392.60/x
  3. Step 3: Cross multiply
    21,183.54x = 31,775.54 × 6,392.60
  4. Step 4: Simplify right side
    21,183.54x = 203,128,317.00
  5. Step 5: Solve for x
    x = 203,128,317.00/21,183.54
  6. Step 6: Final answer
    x = 9,588.97

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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.