Home / 26,787.02-40,181.44-12,739.82

Finding the Fourth Proportional to 26,787.02, 40,181.44 and 12,739.82

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Solution

The fourth proportional to 26,787.02, 40,181.44 and 12,739.82 is: 19,110.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,787.02 : 40,181.44 = 12,739.82 : x
  2. Step 2: Convert to fraction form
    26,787.02/40,181.44 = 12,739.82/x
  3. Step 3: Cross multiply
    26,787.02x = 40,181.44 × 12,739.82
  4. Step 4: Simplify right side
    26,787.02x = 511,904,312.94
  5. Step 5: Solve for x
    x = 511,904,312.94/26,787.02
  6. Step 6: Final answer
    x = 19,110.16

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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.