Home / 30,277.68-41,778.54-18,941.70

Finding the Fourth Proportional to 30,277.68, 41,778.54 and 18,941.70

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Solution

The fourth proportional to 30,277.68, 41,778.54 and 18,941.70 is: 26,136.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,277.68 : 41,778.54 = 18,941.70 : x
  2. Step 2: Convert to fraction form
    30,277.68/41,778.54 = 18,941.70/x
  3. Step 3: Cross multiply
    30,277.68x = 41,778.54 × 18,941.70
  4. Step 4: Simplify right side
    30,277.68x = 791,356,571.12
  5. Step 5: Solve for x
    x = 791,356,571.12/30,277.68
  6. Step 6: Final answer
    x = 26,136.63

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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.