Home / 30,376.52-41,936.82-19,760.84

Finding the Fourth Proportional to 30,376.52, 41,936.82 and 19,760.84

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Solution

The fourth proportional to 30,376.52, 41,936.82 and 19,760.84 is: 27,281.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.52 : 41,936.82 = 19,760.84 : x
  2. Step 2: Convert to fraction form
    30,376.52/41,936.82 = 19,760.84/x
  3. Step 3: Cross multiply
    30,376.52x = 41,936.82 × 19,760.84
  4. Step 4: Simplify right side
    30,376.52x = 828,706,790.13
  5. Step 5: Solve for x
    x = 828,706,790.13/30,376.52
  6. Step 6: Final answer
    x = 27,281.16

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1.5x scale

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.