Home / 38,401.43-57,608.21-13,440.87

Finding the Fourth Proportional to 38,401.43, 57,608.21 and 13,440.87

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Solution

The fourth proportional to 38,401.43, 57,608.21 and 13,440.87 is: 20,163.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,401.43 : 57,608.21 = 13,440.87 : x
  2. Step 2: Convert to fraction form
    38,401.43/57,608.21 = 13,440.87/x
  3. Step 3: Cross multiply
    38,401.43x = 57,608.21 × 13,440.87
  4. Step 4: Simplify right side
    38,401.43x = 774,304,495.14
  5. Step 5: Solve for x
    x = 774,304,495.14/38,401.43
  6. Step 6: Final answer
    x = 20,163.43

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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.