Home / 20,021.19-27,631.99-11,523.14

Finding the Fourth Proportional to 20,021.19, 27,631.99 and 11,523.14

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Solution

The fourth proportional to 20,021.19, 27,631.99 and 11,523.14 is: 15,903.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.19 : 27,631.99 = 11,523.14 : x
  2. Step 2: Convert to fraction form
    20,021.19/27,631.99 = 11,523.14/x
  3. Step 3: Cross multiply
    20,021.19x = 27,631.99 × 11,523.14
  4. Step 4: Simplify right side
    20,021.19x = 318,407,289.25
  5. Step 5: Solve for x
    x = 318,407,289.25/20,021.19
  6. Step 6: Final answer
    x = 15,903.51

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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.