Home / 30,138.56-41,589.44-16,709.12

Finding the Fourth Proportional to 30,138.56, 41,589.44 and 16,709.12

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Solution

The fourth proportional to 30,138.56, 41,589.44 and 16,709.12 is: 23,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,138.56 : 41,589.44 = 16,709.12 : x
  2. Step 2: Convert to fraction form
    30,138.56/41,589.44 = 16,709.12/x
  3. Step 3: Cross multiply
    30,138.56x = 41,589.44 × 16,709.12
  4. Step 4: Simplify right side
    30,138.56x = 694,922,943.69
  5. Step 5: Solve for x
    x = 694,922,943.69/30,138.56
  6. Step 6: Final answer
    x = 23,057.60

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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.