Home / 38,455.36-57,634.44-20,641.84

Finding the Fourth Proportional to 38,455.36, 57,634.44 and 20,641.84

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Solution

The fourth proportional to 38,455.36, 57,634.44 and 20,641.84 is: 30,936.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.36 : 57,634.44 = 20,641.84 : x
  2. Step 2: Convert to fraction form
    38,455.36/57,634.44 = 20,641.84/x
  3. Step 3: Cross multiply
    38,455.36x = 57,634.44 × 20,641.84
  4. Step 4: Simplify right side
    38,455.36x = 1,189,680,888.97
  5. Step 5: Solve for x
    x = 1,189,680,888.97/38,455.36
  6. Step 6: Final answer
    x = 30,936.67

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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.