Home / 38,142.95-57,214.43-11,847.69

Finding the Fourth Proportional to 38,142.95, 57,214.43 and 11,847.69

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Solution

The fourth proportional to 38,142.95, 57,214.43 and 11,847.69 is: 17,771.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,142.95 : 57,214.43 = 11,847.69 : x
  2. Step 2: Convert to fraction form
    38,142.95/57,214.43 = 11,847.69/x
  3. Step 3: Cross multiply
    38,142.95x = 57,214.43 × 11,847.69
  4. Step 4: Simplify right side
    38,142.95x = 677,858,770.93
  5. Step 5: Solve for x
    x = 677,858,770.93/38,142.95
  6. Step 6: Final answer
    x = 17,771.54

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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.