Home / 20,912.04-31,344.57-11,030.04

Finding the Fourth Proportional to 20,912.04, 31,344.57 and 11,030.04

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Solution

The fourth proportional to 20,912.04, 31,344.57 and 11,030.04 is: 16,532.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,912.04 : 31,344.57 = 11,030.04 : x
  2. Step 2: Convert to fraction form
    20,912.04/31,344.57 = 11,030.04/x
  3. Step 3: Cross multiply
    20,912.04x = 31,344.57 × 11,030.04
  4. Step 4: Simplify right side
    20,912.04x = 345,731,860.88
  5. Step 5: Solve for x
    x = 345,731,860.88/20,912.04
  6. Step 6: Final answer
    x = 16,532.67

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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.