Home / 21,839.58-32,759.12-15,401.67

Finding the Fourth Proportional to 21,839.58, 32,759.12 and 15,401.67

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Solution

The fourth proportional to 21,839.58, 32,759.12 and 15,401.67 is: 23,102.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839.58 : 32,759.12 = 15,401.67 : x
  2. Step 2: Convert to fraction form
    21,839.58/32,759.12 = 15,401.67/x
  3. Step 3: Cross multiply
    21,839.58x = 32,759.12 × 15,401.67
  4. Step 4: Simplify right side
    21,839.58x = 504,545,078.72
  5. Step 5: Solve for x
    x = 504,545,078.72/21,839.58
  6. Step 6: Final answer
    x = 23,102.33

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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.