Home / 28,759.88-43,141.68-9,039.26

Finding the Fourth Proportional to 28,759.88, 43,141.68 and 9,039.26

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Solution

The fourth proportional to 28,759.88, 43,141.68 and 9,039.26 is: 13,559.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,759.88 : 43,141.68 = 9,039.26 : x
  2. Step 2: Convert to fraction form
    28,759.88/43,141.68 = 9,039.26/x
  3. Step 3: Cross multiply
    28,759.88x = 43,141.68 × 9,039.26
  4. Step 4: Simplify right side
    28,759.88x = 389,968,862.36
  5. Step 5: Solve for x
    x = 389,968,862.36/28,759.88
  6. Step 6: Final answer
    x = 13,559.47

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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.