Home / 20,133.03-27,796.35-12,965.64

Finding the Fourth Proportional to 20,133.03, 27,796.35 and 12,965.64

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Solution

The fourth proportional to 20,133.03, 27,796.35 and 12,965.64 is: 17,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.03 : 27,796.35 = 12,965.64 : x
  2. Step 2: Convert to fraction form
    20,133.03/27,796.35 = 12,965.64/x
  3. Step 3: Cross multiply
    20,133.03x = 27,796.35 × 12,965.64
  4. Step 4: Simplify right side
    20,133.03x = 360,397,467.41
  5. Step 5: Solve for x
    x = 360,397,467.41/20,133.03
  6. Step 6: Final answer
    x = 17,900.81

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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.