Home / 30.83-46.01-30.15

Finding the Fourth Proportional to 30.83, 46.01 and 30.15

Calculator

Solution

The fourth proportional to 30.83, 46.01 and 30.15 is: 45.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30.83 : 46.01 = 30.15 : x
  2. Step 2: Convert to fraction form
    30.83/46.01 = 30.15/x
  3. Step 3: Cross multiply
    30.83x = 46.01 × 30.15
  4. Step 4: Simplify right side
    30.83x = 1,387.28
  5. Step 5: Solve for x
    x = 1,387.28/30.83
  6. Step 6: Final answer
    x = 45.00

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.