Home / 20,082.23-30,090.49-12,160.74

Finding the Fourth Proportional to 20,082.23, 30,090.49 and 12,160.74

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Solution

The fourth proportional to 20,082.23, 30,090.49 and 12,160.74 is: 18,221.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,082.23 : 30,090.49 = 12,160.74 : x
  2. Step 2: Convert to fraction form
    20,082.23/30,090.49 = 12,160.74/x
  3. Step 3: Cross multiply
    20,082.23x = 30,090.49 × 12,160.74
  4. Step 4: Simplify right side
    20,082.23x = 365,922,594.96
  5. Step 5: Solve for x
    x = 365,922,594.96/20,082.23
  6. Step 6: Final answer
    x = 18,221.22

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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.