Home / 27,121.10-40,687.79-14,640.89

Finding the Fourth Proportional to 27,121.10, 40,687.79 and 14,640.89

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Solution

The fourth proportional to 27,121.10, 40,687.79 and 14,640.89 is: 21,964.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,121.10 : 40,687.79 = 14,640.89 : x
  2. Step 2: Convert to fraction form
    27,121.10/40,687.79 = 14,640.89/x
  3. Step 3: Cross multiply
    27,121.10x = 40,687.79 × 14,640.89
  4. Step 4: Simplify right side
    27,121.10x = 595,705,181.09
  5. Step 5: Solve for x
    x = 595,705,181.09/27,121.10
  6. Step 6: Final answer
    x = 21,964.64

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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.