Home / 21,198.80-31,729.08-14,954.96

Finding the Fourth Proportional to 21,198.80, 31,729.08 and 14,954.96

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Solution

The fourth proportional to 21,198.80, 31,729.08 and 14,954.96 is: 22,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,198.80 : 31,729.08 = 14,954.96 : x
  2. Step 2: Convert to fraction form
    21,198.80/31,729.08 = 14,954.96/x
  3. Step 3: Cross multiply
    21,198.80x = 31,729.08 × 14,954.96
  4. Step 4: Simplify right side
    21,198.80x = 474,507,122.24
  5. Step 5: Solve for x
    x = 474,507,122.24/21,198.80
  6. Step 6: Final answer
    x = 22,383.68

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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.