Home / 28,928.80-43,382.40-10,201.60

Finding the Fourth Proportional to 28,928.80, 43,382.40 and 10,201.60

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Solution

The fourth proportional to 28,928.80, 43,382.40 and 10,201.60 is: 15,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,928.80 : 43,382.40 = 10,201.60 : x
  2. Step 2: Convert to fraction form
    28,928.80/43,382.40 = 10,201.60/x
  3. Step 3: Cross multiply
    28,928.80x = 43,382.40 × 10,201.60
  4. Step 4: Simplify right side
    28,928.80x = 442,569,891.84
  5. Step 5: Solve for x
    x = 442,569,891.84/28,928.80
  6. Step 6: Final answer
    x = 15,298.59

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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.