Home / 30,519.49-42,114.86-16,906.61

Finding the Fourth Proportional to 30,519.49, 42,114.86 and 16,906.61

Calculator

Solution

The fourth proportional to 30,519.49, 42,114.86 and 16,906.61 is: 23,329.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519.49 : 42,114.86 = 16,906.61 : x
  2. Step 2: Convert to fraction form
    30,519.49/42,114.86 = 16,906.61/x
  3. Step 3: Cross multiply
    30,519.49x = 42,114.86 × 16,906.61
  4. Step 4: Simplify right side
    30,519.49x = 712,019,428.69
  5. Step 5: Solve for x
    x = 712,019,428.69/30,519.49
  6. Step 6: Final answer
    x = 23,329.99

Related Problems

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.