Home / 30,378.86-41,926.45-17,803.60

Finding the Fourth Proportional to 30,378.86, 41,926.45 and 17,803.60

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Solution

The fourth proportional to 30,378.86, 41,926.45 and 17,803.60 is: 24,571.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,378.86 : 41,926.45 = 17,803.60 : x
  2. Step 2: Convert to fraction form
    30,378.86/41,926.45 = 17,803.60/x
  3. Step 3: Cross multiply
    30,378.86x = 41,926.45 × 17,803.60
  4. Step 4: Simplify right side
    30,378.86x = 746,441,745.22
  5. Step 5: Solve for x
    x = 746,441,745.22/30,378.86
  6. Step 6: Final answer
    x = 24,571.09

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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.