Home / 21,222.05-31,832.26-7,183.13

Finding the Fourth Proportional to 21,222.05, 31,832.26 and 7,183.13

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Solution

The fourth proportional to 21,222.05, 31,832.26 and 7,183.13 is: 10,774.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.05 : 31,832.26 = 7,183.13 : x
  2. Step 2: Convert to fraction form
    21,222.05/31,832.26 = 7,183.13/x
  3. Step 3: Cross multiply
    21,222.05x = 31,832.26 × 7,183.13
  4. Step 4: Simplify right side
    21,222.05x = 228,655,084.65
  5. Step 5: Solve for x
    x = 228,655,084.65/21,222.05
  6. Step 6: Final answer
    x = 10,774.41

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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.