Home / 28,908.40-43,367.46-9,185.44

Finding the Fourth Proportional to 28,908.40, 43,367.46 and 9,185.44

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Solution

The fourth proportional to 28,908.40, 43,367.46 and 9,185.44 is: 13,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.40 : 43,367.46 = 9,185.44 : x
  2. Step 2: Convert to fraction form
    28,908.40/43,367.46 = 9,185.44/x
  3. Step 3: Cross multiply
    28,908.40x = 43,367.46 × 9,185.44
  4. Step 4: Simplify right side
    28,908.40x = 398,349,201.78
  5. Step 5: Solve for x
    x = 398,349,201.78/28,908.40
  6. Step 6: Final answer
    x = 13,779.70

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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.