Home / 28,735.26-43,045.29-13,131.42

Finding the Fourth Proportional to 28,735.26, 43,045.29 and 13,131.42

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Solution

The fourth proportional to 28,735.26, 43,045.29 and 13,131.42 is: 19,670.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,735.26 : 43,045.29 = 13,131.42 : x
  2. Step 2: Convert to fraction form
    28,735.26/43,045.29 = 13,131.42/x
  3. Step 3: Cross multiply
    28,735.26x = 43,045.29 × 13,131.42
  4. Step 4: Simplify right side
    28,735.26x = 565,245,782.01
  5. Step 5: Solve for x
    x = 565,245,782.01/28,735.26
  6. Step 6: Final answer
    x = 19,670.81

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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.