Home / 35.40-53.01-19.35

Finding the Fourth Proportional to 35.40, 53.01 and 19.35

Calculator

Solution

The fourth proportional to 35.40, 53.01 and 19.35 is: 28.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.40 : 53.01 = 19.35 : x
  2. Step 2: Convert to fraction form
    35.40/53.01 = 19.35/x
  3. Step 3: Cross multiply
    35.40x = 53.01 × 19.35
  4. Step 4: Simplify right side
    35.40x = 1,025.74
  5. Step 5: Solve for x
    x = 1,025.74/35.40
  6. Step 6: Final answer
    x = 28.98

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.