Home / 30,144.15-41,601.40-16,716.78

Finding the Fourth Proportional to 30,144.15, 41,601.40 and 16,716.78

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Solution

The fourth proportional to 30,144.15, 41,601.40 and 16,716.78 is: 23,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.15 : 41,601.40 = 16,716.78 : x
  2. Step 2: Convert to fraction form
    30,144.15/41,601.40 = 16,716.78/x
  3. Step 3: Cross multiply
    30,144.15x = 41,601.40 × 16,716.78
  4. Step 4: Simplify right side
    30,144.15x = 695,441,409.70
  5. Step 5: Solve for x
    x = 695,441,409.70/30,144.15
  6. Step 6: Final answer
    x = 23,070.53

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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.