Home / 20,331.89-30,496.03-7,183.61

Finding the Fourth Proportional to 20,331.89, 30,496.03 and 7,183.61

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Solution

The fourth proportional to 20,331.89, 30,496.03 and 7,183.61 is: 10,774.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.89 : 30,496.03 = 7,183.61 : x
  2. Step 2: Convert to fraction form
    20,331.89/30,496.03 = 7,183.61/x
  3. Step 3: Cross multiply
    20,331.89x = 30,496.03 × 7,183.61
  4. Step 4: Simplify right side
    20,331.89x = 219,071,415.63
  5. Step 5: Solve for x
    x = 219,071,415.63/20,331.89
  6. Step 6: Final answer
    x = 10,774.77

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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.