Home / 28,916.75-43,255.19-27,145.28

Finding the Fourth Proportional to 28,916.75, 43,255.19 and 27,145.28

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Solution

The fourth proportional to 28,916.75, 43,255.19 and 27,145.28 is: 40,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.75 : 43,255.19 = 27,145.28 : x
  2. Step 2: Convert to fraction form
    28,916.75/43,255.19 = 27,145.28/x
  3. Step 3: Cross multiply
    28,916.75x = 43,255.19 × 27,145.28
  4. Step 4: Simplify right side
    28,916.75x = 1,174,174,288.18
  5. Step 5: Solve for x
    x = 1,174,174,288.18/28,916.75
  6. Step 6: Final answer
    x = 40,605.33

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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.