Home / 28,759.32-43,138.74-11,241.36

Finding the Fourth Proportional to 28,759.32, 43,138.74 and 11,241.36

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Solution

The fourth proportional to 28,759.32, 43,138.74 and 11,241.36 is: 16,861.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.32 : 43,138.74 = 11,241.36 : x
  2. Step 2: Convert to fraction form
    28,759.32/43,138.74 = 11,241.36/x
  3. Step 3: Cross multiply
    28,759.32x = 43,138.74 × 11,241.36
  4. Step 4: Simplify right side
    28,759.32x = 484,938,106.29
  5. Step 5: Solve for x
    x = 484,938,106.29/28,759.32
  6. Step 6: Final answer
    x = 16,861.95

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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.