Home / 38,261.82-57,415.41-20,731.26

Finding the Fourth Proportional to 38,261.82, 57,415.41 and 20,731.26

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Solution

The fourth proportional to 38,261.82, 57,415.41 and 20,731.26 is: 31,109.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,261.82 : 57,415.41 = 20,731.26 : x
  2. Step 2: Convert to fraction form
    38,261.82/57,415.41 = 20,731.26/x
  3. Step 3: Cross multiply
    38,261.82x = 57,415.41 × 20,731.26
  4. Step 4: Simplify right side
    38,261.82x = 1,190,293,792.72
  5. Step 5: Solve for x
    x = 1,190,293,792.72/38,261.82
  6. Step 6: Final answer
    x = 31,109.18

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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.