Home / 28,919.36-43,375.80-9,196.40

Finding the Fourth Proportional to 28,919.36, 43,375.80 and 9,196.40

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Solution

The fourth proportional to 28,919.36, 43,375.80 and 9,196.40 is: 13,793.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,919.36 : 43,375.80 = 9,196.40 : x
  2. Step 2: Convert to fraction form
    28,919.36/43,375.80 = 9,196.40/x
  3. Step 3: Cross multiply
    28,919.36x = 43,375.80 × 9,196.40
  4. Step 4: Simplify right side
    28,919.36x = 398,901,207.12
  5. Step 5: Solve for x
    x = 398,901,207.12/28,919.36
  6. Step 6: Final answer
    x = 13,793.57

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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.