Home / 21,993.42-30,351.52-12,433.66

Finding the Fourth Proportional to 21,993.42, 30,351.52 and 12,433.66

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Solution

The fourth proportional to 21,993.42, 30,351.52 and 12,433.66 is: 17,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.42 : 30,351.52 = 12,433.66 : x
  2. Step 2: Convert to fraction form
    21,993.42/30,351.52 = 12,433.66/x
  3. Step 3: Cross multiply
    21,993.42x = 30,351.52 × 12,433.66
  4. Step 4: Simplify right side
    21,993.42x = 377,380,572.04
  5. Step 5: Solve for x
    x = 377,380,572.04/21,993.42
  6. Step 6: Final answer
    x = 17,158.80

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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.