Home / 19,991.04-27,583.20-11,492.64

Finding the Fourth Proportional to 19,991.04, 27,583.20 and 11,492.64

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Solution

The fourth proportional to 19,991.04, 27,583.20 and 11,492.64 is: 15,857.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.04 : 27,583.20 = 11,492.64 : x
  2. Step 2: Convert to fraction form
    19,991.04/27,583.20 = 11,492.64/x
  3. Step 3: Cross multiply
    19,991.04x = 27,583.20 × 11,492.64
  4. Step 4: Simplify right side
    19,991.04x = 317,003,787.65
  5. Step 5: Solve for x
    x = 317,003,787.65/19,991.04
  6. Step 6: Final answer
    x = 15,857.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.