Home / 30,119.70-41,544.45-21,185.94

Finding the Fourth Proportional to 30,119.70, 41,544.45 and 21,185.94

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Solution

The fourth proportional to 30,119.70, 41,544.45 and 21,185.94 is: 29,222.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.70 : 41,544.45 = 21,185.94 : x
  2. Step 2: Convert to fraction form
    30,119.70/41,544.45 = 21,185.94/x
  3. Step 3: Cross multiply
    30,119.70x = 41,544.45 × 21,185.94
  4. Step 4: Simplify right side
    30,119.70x = 880,158,225.03
  5. Step 5: Solve for x
    x = 880,158,225.03/30,119.70
  6. Step 6: Final answer
    x = 29,222.01

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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.