Home / 38,408.70-57,645.45-18,704.10

Finding the Fourth Proportional to 38,408.70, 57,645.45 and 18,704.10

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Solution

The fourth proportional to 38,408.70, 57,645.45 and 18,704.10 is: 28,071.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,408.70 : 57,645.45 = 18,704.10 : x
  2. Step 2: Convert to fraction form
    38,408.70/57,645.45 = 18,704.10/x
  3. Step 3: Cross multiply
    38,408.70x = 57,645.45 × 18,704.10
  4. Step 4: Simplify right side
    38,408.70x = 1,078,206,261.35
  5. Step 5: Solve for x
    x = 1,078,206,261.35/38,408.70
  6. Step 6: Final answer
    x = 28,071.93

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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.