Home / 20,055.40-27,675.30-11,102.44

Finding the Fourth Proportional to 20,055.40, 27,675.30 and 11,102.44

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Solution

The fourth proportional to 20,055.40, 27,675.30 and 11,102.44 is: 15,320.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.40 : 27,675.30 = 11,102.44 : x
  2. Step 2: Convert to fraction form
    20,055.40/27,675.30 = 11,102.44/x
  3. Step 3: Cross multiply
    20,055.40x = 27,675.30 × 11,102.44
  4. Step 4: Simplify right side
    20,055.40x = 307,263,357.73
  5. Step 5: Solve for x
    x = 307,263,357.73/20,055.40
  6. Step 6: Final answer
    x = 15,320.73

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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.