Home / 21,964.20-30,315.59-17,174.67

Finding the Fourth Proportional to 21,964.20, 30,315.59 and 17,174.67

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Solution

The fourth proportional to 21,964.20, 30,315.59 and 17,174.67 is: 23,704.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.20 : 30,315.59 = 17,174.67 : x
  2. Step 2: Convert to fraction form
    21,964.20/30,315.59 = 17,174.67/x
  3. Step 3: Cross multiply
    21,964.20x = 30,315.59 × 17,174.67
  4. Step 4: Simplify right side
    21,964.20x = 520,660,168.23
  5. Step 5: Solve for x
    x = 520,660,168.23/21,964.20
  6. Step 6: Final answer
    x = 23,704.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.