Home / 27,181.89-40,790.16-12,392.28

Finding the Fourth Proportional to 27,181.89, 40,790.16 and 12,392.28

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Solution

The fourth proportional to 27,181.89, 40,790.16 and 12,392.28 is: 18,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,181.89 : 40,790.16 = 12,392.28 : x
  2. Step 2: Convert to fraction form
    27,181.89/40,790.16 = 12,392.28/x
  3. Step 3: Cross multiply
    27,181.89x = 40,790.16 × 12,392.28
  4. Step 4: Simplify right side
    27,181.89x = 505,483,083.96
  5. Step 5: Solve for x
    x = 505,483,083.96/27,181.89
  6. Step 6: Final answer
    x = 18,596.32

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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.