Home / 26,787.72-40,181.64-12,927

Finding the Fourth Proportional to 26,787.72, 40,181.64 and 12,927

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Solution

The fourth proportional to 26,787.72, 40,181.64 and 12,927 is: 19,390.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,787.72 : 40,181.64 = 12,927 : x
  2. Step 2: Convert to fraction form
    26,787.72/40,181.64 = 12,927/x
  3. Step 3: Cross multiply
    26,787.72x = 40,181.64 × 12,927
  4. Step 4: Simplify right side
    26,787.72x = 519,428,060.28
  5. Step 5: Solve for x
    x = 519,428,060.28/26,787.72
  6. Step 6: Final answer
    x = 19,390.53

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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.