Home / 28,735.49-43,103.21-9,015.57

Finding the Fourth Proportional to 28,735.49, 43,103.21 and 9,015.57

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Solution

The fourth proportional to 28,735.49, 43,103.21 and 9,015.57 is: 13,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.49 : 43,103.21 = 9,015.57 : x
  2. Step 2: Convert to fraction form
    28,735.49/43,103.21 = 9,015.57/x
  3. Step 3: Cross multiply
    28,735.49x = 43,103.21 × 9,015.57
  4. Step 4: Simplify right side
    28,735.49x = 388,599,961.90
  5. Step 5: Solve for x
    x = 388,599,961.90/28,735.49
  6. Step 6: Final answer
    x = 13,523.34

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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.