Home / 28,858.14-43,287.48-9,136.80

Finding the Fourth Proportional to 28,858.14, 43,287.48 and 9,136.80

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Solution

The fourth proportional to 28,858.14, 43,287.48 and 9,136.80 is: 13,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.14 : 43,287.48 = 9,136.80 : x
  2. Step 2: Convert to fraction form
    28,858.14/43,287.48 = 9,136.80/x
  3. Step 3: Cross multiply
    28,858.14x = 43,287.48 × 9,136.80
  4. Step 4: Simplify right side
    28,858.14x = 395,509,047.26
  5. Step 5: Solve for x
    x = 395,509,047.26/28,858.14
  6. Step 6: Final answer
    x = 13,705.29

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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.