Home / 20,331.51-30,495.47-7,183.23

Finding the Fourth Proportional to 20,331.51, 30,495.47 and 7,183.23

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Solution

The fourth proportional to 20,331.51, 30,495.47 and 7,183.23 is: 10,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,331.51 : 30,495.47 = 7,183.23 : x
  2. Step 2: Convert to fraction form
    20,331.51/30,495.47 = 7,183.23/x
  3. Step 3: Cross multiply
    20,331.51x = 30,495.47 × 7,183.23
  4. Step 4: Simplify right side
    20,331.51x = 219,055,939.05
  5. Step 5: Solve for x
    x = 219,055,939.05/20,331.51
  6. Step 6: Final answer
    x = 10,774.21

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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.