Home / 22,040.42-30,415.85-11,969.03

Finding the Fourth Proportional to 22,040.42, 30,415.85 and 11,969.03

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Solution

The fourth proportional to 22,040.42, 30,415.85 and 11,969.03 is: 16,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.42 : 30,415.85 = 11,969.03 : x
  2. Step 2: Convert to fraction form
    22,040.42/30,415.85 = 11,969.03/x
  3. Step 3: Cross multiply
    22,040.42x = 30,415.85 × 11,969.03
  4. Step 4: Simplify right side
    22,040.42x = 364,048,221.13
  5. Step 5: Solve for x
    x = 364,048,221.13/22,040.42
  6. Step 6: Final answer
    x = 16,517.30

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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.