Home / 20,296.44-27,999.27-12,739.01

Finding the Fourth Proportional to 20,296.44, 27,999.27 and 12,739.01

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Solution

The fourth proportional to 20,296.44, 27,999.27 and 12,739.01 is: 17,573.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,296.44 : 27,999.27 = 12,739.01 : x
  2. Step 2: Convert to fraction form
    20,296.44/27,999.27 = 12,739.01/x
  3. Step 3: Cross multiply
    20,296.44x = 27,999.27 × 12,739.01
  4. Step 4: Simplify right side
    20,296.44x = 356,682,840.53
  5. Step 5: Solve for x
    x = 356,682,840.53/20,296.44
  6. Step 6: Final answer
    x = 17,573.67

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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.