Home / 21,993.46-30,350.60-12,433.20

Finding the Fourth Proportional to 21,993.46, 30,350.60 and 12,433.20

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Solution

The fourth proportional to 21,993.46, 30,350.60 and 12,433.20 is: 17,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.46 : 30,350.60 = 12,433.20 : x
  2. Step 2: Convert to fraction form
    21,993.46/30,350.60 = 12,433.20/x
  3. Step 3: Cross multiply
    21,993.46x = 30,350.60 × 12,433.20
  4. Step 4: Simplify right side
    21,993.46x = 377,354,950.56
  5. Step 5: Solve for x
    x = 377,354,950.56/21,993.46
  6. Step 6: Final answer
    x = 17,157.60

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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.