Home / 28,863.50-43,299.32-9,143.60

Finding the Fourth Proportional to 28,863.50, 43,299.32 and 9,143.60

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Solution

The fourth proportional to 28,863.50, 43,299.32 and 9,143.60 is: 13,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,863.50 : 43,299.32 = 9,143.60 : x
  2. Step 2: Convert to fraction form
    28,863.50/43,299.32 = 9,143.60/x
  3. Step 3: Cross multiply
    28,863.50x = 43,299.32 × 9,143.60
  4. Step 4: Simplify right side
    28,863.50x = 395,911,400.14
  5. Step 5: Solve for x
    x = 395,911,400.14/28,863.50
  6. Step 6: Final answer
    x = 13,716.68

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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.