Home / 38,112.89-57,175.40-11,812.19

Finding the Fourth Proportional to 38,112.89, 57,175.40 and 11,812.19

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Solution

The fourth proportional to 38,112.89, 57,175.40 and 11,812.19 is: 17,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,112.89 : 57,175.40 = 11,812.19 : x
  2. Step 2: Convert to fraction form
    38,112.89/57,175.40 = 11,812.19/x
  3. Step 3: Cross multiply
    38,112.89x = 57,175.40 × 11,812.19
  4. Step 4: Simplify right side
    38,112.89x = 675,366,629.07
  5. Step 5: Solve for x
    x = 675,366,629.07/38,112.89
  6. Step 6: Final answer
    x = 17,720.16

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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.