Home / 26,782.15-40,157.02-11,988.31

Finding the Fourth Proportional to 26,782.15, 40,157.02 and 11,988.31

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Solution

The fourth proportional to 26,782.15, 40,157.02 and 11,988.31 is: 17,975.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,782.15 : 40,157.02 = 11,988.31 : x
  2. Step 2: Convert to fraction form
    26,782.15/40,157.02 = 11,988.31/x
  3. Step 3: Cross multiply
    26,782.15x = 40,157.02 × 11,988.31
  4. Step 4: Simplify right side
    26,782.15x = 481,414,804.44
  5. Step 5: Solve for x
    x = 481,414,804.44/26,782.15
  6. Step 6: Final answer
    x = 17,975.21

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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.