Home / 28,801.35-43,099.37-19,918.48

Finding the Fourth Proportional to 28,801.35, 43,099.37 and 19,918.48

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Solution

The fourth proportional to 28,801.35, 43,099.37 and 19,918.48 is: 29,806.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,801.35 : 43,099.37 = 19,918.48 : x
  2. Step 2: Convert to fraction form
    28,801.35/43,099.37 = 19,918.48/x
  3. Step 3: Cross multiply
    28,801.35x = 43,099.37 × 19,918.48
  4. Step 4: Simplify right side
    28,801.35x = 858,473,939.36
  5. Step 5: Solve for x
    x = 858,473,939.36/28,801.35
  6. Step 6: Final answer
    x = 29,806.73

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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.