Home / 47,391.96-71,087.74-19,305.75

Finding the Fourth Proportional to 47,391.96, 71,087.74 and 19,305.75

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Solution

The fourth proportional to 47,391.96, 71,087.74 and 19,305.75 is: 28,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,391.96 : 71,087.74 = 19,305.75 : x
  2. Step 2: Convert to fraction form
    47,391.96/71,087.74 = 19,305.75/x
  3. Step 3: Cross multiply
    47,391.96x = 71,087.74 × 19,305.75
  4. Step 4: Simplify right side
    47,391.96x = 1,372,402,039.98
  5. Step 5: Solve for x
    x = 1,372,402,039.98/47,391.96
  6. Step 6: Final answer
    x = 28,958.54

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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.