Home / 28,806.26-43,101.66-20,505.38

Finding the Fourth Proportional to 28,806.26, 43,101.66 and 20,505.38

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Solution

The fourth proportional to 28,806.26, 43,101.66 and 20,505.38 is: 30,681.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.26 : 43,101.66 = 20,505.38 : x
  2. Step 2: Convert to fraction form
    28,806.26/43,101.66 = 20,505.38/x
  3. Step 3: Cross multiply
    28,806.26x = 43,101.66 × 20,505.38
  4. Step 4: Simplify right side
    28,806.26x = 883,815,916.93
  5. Step 5: Solve for x
    x = 883,815,916.93/28,806.26
  6. Step 6: Final answer
    x = 30,681.38

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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.