Home / 20,189.94-27,861.30-11,237.19

Finding the Fourth Proportional to 20,189.94, 27,861.30 and 11,237.19

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Solution

The fourth proportional to 20,189.94, 27,861.30 and 11,237.19 is: 15,506.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,189.94 : 27,861.30 = 11,237.19 : x
  2. Step 2: Convert to fraction form
    20,189.94/27,861.30 = 11,237.19/x
  3. Step 3: Cross multiply
    20,189.94x = 27,861.30 × 11,237.19
  4. Step 4: Simplify right side
    20,189.94x = 313,082,721.75
  5. Step 5: Solve for x
    x = 313,082,721.75/20,189.94
  6. Step 6: Final answer
    x = 15,506.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.