Home / 22,040.43-30,415.70-11,968.78

Finding the Fourth Proportional to 22,040.43, 30,415.70 and 11,968.78

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Solution

The fourth proportional to 22,040.43, 30,415.70 and 11,968.78 is: 16,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.43 : 30,415.70 = 11,968.78 : x
  2. Step 2: Convert to fraction form
    22,040.43/30,415.70 = 11,968.78/x
  3. Step 3: Cross multiply
    22,040.43x = 30,415.70 × 11,968.78
  4. Step 4: Simplify right side
    22,040.43x = 364,038,821.85
  5. Step 5: Solve for x
    x = 364,038,821.85/22,040.43
  6. Step 6: Final answer
    x = 16,516.87

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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.