Home / 19,378.89-29,081.09-10,619.96

Finding the Fourth Proportional to 19,378.89, 29,081.09 and 10,619.96

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Solution

The fourth proportional to 19,378.89, 29,081.09 and 10,619.96 is: 15,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,378.89 : 29,081.09 = 10,619.96 : x
  2. Step 2: Convert to fraction form
    19,378.89/29,081.09 = 10,619.96/x
  3. Step 3: Cross multiply
    19,378.89x = 29,081.09 × 10,619.96
  4. Step 4: Simplify right side
    19,378.89x = 308,839,893.70
  5. Step 5: Solve for x
    x = 308,839,893.70/19,378.89
  6. Step 6: Final answer
    x = 15,936.92

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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.