Home / 19,745.40-29,682.90-13,942.20

Finding the Fourth Proportional to 19,745.40, 29,682.90 and 13,942.20

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Solution

The fourth proportional to 19,745.40, 29,682.90 and 13,942.20 is: 20,959.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,745.40 : 29,682.90 = 13,942.20 : x
  2. Step 2: Convert to fraction form
    19,745.40/29,682.90 = 13,942.20/x
  3. Step 3: Cross multiply
    19,745.40x = 29,682.90 × 13,942.20
  4. Step 4: Simplify right side
    19,745.40x = 413,844,928.38
  5. Step 5: Solve for x
    x = 413,844,928.38/19,745.40
  6. Step 6: Final answer
    x = 20,959.06

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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.