Home / 20,028.07-27,638.04-11,529.91

Finding the Fourth Proportional to 20,028.07, 27,638.04 and 11,529.91

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Solution

The fourth proportional to 20,028.07, 27,638.04 and 11,529.91 is: 15,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.07 : 27,638.04 = 11,529.91 : x
  2. Step 2: Convert to fraction form
    20,028.07/27,638.04 = 11,529.91/x
  3. Step 3: Cross multiply
    20,028.07x = 27,638.04 × 11,529.91
  4. Step 4: Simplify right side
    20,028.07x = 318,664,113.78
  5. Step 5: Solve for x
    x = 318,664,113.78/20,028.07
  6. Step 6: Final answer
    x = 15,910.87

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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.