Home / 20,494.77-30,729.83-13,900.96

Finding the Fourth Proportional to 20,494.77, 30,729.83 and 13,900.96

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Solution

The fourth proportional to 20,494.77, 30,729.83 and 13,900.96 is: 20,843.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.77 : 30,729.83 = 13,900.96 : x
  2. Step 2: Convert to fraction form
    20,494.77/30,729.83 = 13,900.96/x
  3. Step 3: Cross multiply
    20,494.77x = 30,729.83 × 13,900.96
  4. Step 4: Simplify right side
    20,494.77x = 427,174,137.64
  5. Step 5: Solve for x
    x = 427,174,137.64/20,494.77
  6. Step 6: Final answer
    x = 20,843.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.