Home / 30,747.74-42,436.62-18,650.21

Finding the Fourth Proportional to 30,747.74, 42,436.62 and 18,650.21

Calculator

Solution

The fourth proportional to 30,747.74, 42,436.62 and 18,650.21 is: 25,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,747.74 : 42,436.62 = 18,650.21 : x
  2. Step 2: Convert to fraction form
    30,747.74/42,436.62 = 18,650.21/x
  3. Step 3: Cross multiply
    30,747.74x = 42,436.62 × 18,650.21
  4. Step 4: Simplify right side
    30,747.74x = 791,451,662.51
  5. Step 5: Solve for x
    x = 791,451,662.51/30,747.74
  6. Step 6: Final answer
    x = 25,740.16

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.