Home / 28,099.11-42,116.86-11,438.22

Finding the Fourth Proportional to 28,099.11, 42,116.86 and 11,438.22

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Solution

The fourth proportional to 28,099.11, 42,116.86 and 11,438.22 is: 17,144.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,099.11 : 42,116.86 = 11,438.22 : x
  2. Step 2: Convert to fraction form
    28,099.11/42,116.86 = 11,438.22/x
  3. Step 3: Cross multiply
    28,099.11x = 42,116.86 × 11,438.22
  4. Step 4: Simplify right side
    28,099.11x = 481,741,910.39
  5. Step 5: Solve for x
    x = 481,741,910.39/28,099.11
  6. Step 6: Final answer
    x = 17,144.38

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1.5x scale

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.