Home / 28,928.45-43,400.88-9,208.55

Finding the Fourth Proportional to 28,928.45, 43,400.88 and 9,208.55

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Solution

The fourth proportional to 28,928.45, 43,400.88 and 9,208.55 is: 13,815.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.45 : 43,400.88 = 9,208.55 : x
  2. Step 2: Convert to fraction form
    28,928.45/43,400.88 = 9,208.55/x
  3. Step 3: Cross multiply
    28,928.45x = 43,400.88 × 9,208.55
  4. Step 4: Simplify right side
    28,928.45x = 399,659,282.03
  5. Step 5: Solve for x
    x = 399,659,282.03/28,928.45
  6. Step 6: Final answer
    x = 13,815.44

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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.