Home / 39,198.40-58,653.60-28,830.40

Finding the Fourth Proportional to 39,198.40, 58,653.60 and 28,830.40

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Solution

The fourth proportional to 39,198.40, 58,653.60 and 28,830.40 is: 43,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.40 : 58,653.60 = 28,830.40 : x
  2. Step 2: Convert to fraction form
    39,198.40/58,653.60 = 28,830.40/x
  3. Step 3: Cross multiply
    39,198.40x = 58,653.60 × 28,830.40
  4. Step 4: Simplify right side
    39,198.40x = 1,691,006,749.44
  5. Step 5: Solve for x
    x = 1,691,006,749.44/39,198.40
  6. Step 6: Final answer
    x = 43,139.69

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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.