Home / 33,420.89-50,131.31-13,430.37

Finding the Fourth Proportional to 33,420.89, 50,131.31 and 13,430.37

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Solution

The fourth proportional to 33,420.89, 50,131.31 and 13,430.37 is: 20,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,420.89 : 50,131.31 = 13,430.37 : x
  2. Step 2: Convert to fraction form
    33,420.89/50,131.31 = 13,430.37/x
  3. Step 3: Cross multiply
    33,420.89x = 50,131.31 × 13,430.37
  4. Step 4: Simplify right side
    33,420.89x = 673,282,162.73
  5. Step 5: Solve for x
    x = 673,282,162.73/33,420.89
  6. Step 6: Final answer
    x = 20,145.55

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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.