Home / 28,379.75-39,159.36-17,201.75

Finding the Fourth Proportional to 28,379.75, 39,159.36 and 17,201.75

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Solution

The fourth proportional to 28,379.75, 39,159.36 and 17,201.75 is: 23,735.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.75 : 39,159.36 = 17,201.75 : x
  2. Step 2: Convert to fraction form
    28,379.75/39,159.36 = 17,201.75/x
  3. Step 3: Cross multiply
    28,379.75x = 39,159.36 × 17,201.75
  4. Step 4: Simplify right side
    28,379.75x = 673,609,325.08
  5. Step 5: Solve for x
    x = 673,609,325.08/28,379.75
  6. Step 6: Final answer
    x = 23,735.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.