Home / 35.40-52.87-30.34

Finding the Fourth Proportional to 35.40, 52.87 and 30.34

Calculator

Solution

The fourth proportional to 35.40, 52.87 and 30.34 is: 45.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.40 : 52.87 = 30.34 : x
  2. Step 2: Convert to fraction form
    35.40/52.87 = 30.34/x
  3. Step 3: Cross multiply
    35.40x = 52.87 × 30.34
  4. Step 4: Simplify right side
    35.40x = 1,604.08
  5. Step 5: Solve for x
    x = 1,604.08/35.40
  6. Step 6: Final answer
    x = 45.31

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.