Home / 20,223.96-27,908.30-11,271.03

Finding the Fourth Proportional to 20,223.96, 27,908.30 and 11,271.03

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Solution

The fourth proportional to 20,223.96, 27,908.30 and 11,271.03 is: 15,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.96 : 27,908.30 = 11,271.03 : x
  2. Step 2: Convert to fraction form
    20,223.96/27,908.30 = 11,271.03/x
  3. Step 3: Cross multiply
    20,223.96x = 27,908.30 × 11,271.03
  4. Step 4: Simplify right side
    20,223.96x = 314,555,230.19
  5. Step 5: Solve for x
    x = 314,555,230.19/20,223.96
  6. Step 6: Final answer
    x = 15,553.59

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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.