Home / 27,199.68-40,787.64-11,178.30

Finding the Fourth Proportional to 27,199.68, 40,787.64 and 11,178.30

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Solution

The fourth proportional to 27,199.68, 40,787.64 and 11,178.30 is: 16,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,199.68 : 40,787.64 = 11,178.30 : x
  2. Step 2: Convert to fraction form
    27,199.68/40,787.64 = 11,178.30/x
  3. Step 3: Cross multiply
    27,199.68x = 40,787.64 × 11,178.30
  4. Step 4: Simplify right side
    27,199.68x = 455,936,476.21
  5. Step 5: Solve for x
    x = 455,936,476.21/27,199.68
  6. Step 6: Final answer
    x = 16,762.57

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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.