Home / 23.93-32.97-21

Finding the Fourth Proportional to 23.93, 32.97 and 21

Calculator

Solution

The fourth proportional to 23.93, 32.97 and 21 is: 28.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    23.93 : 32.97 = 21 : x
  2. Step 2: Convert to fraction form
    23.93/32.97 = 21/x
  3. Step 3: Cross multiply
    23.93x = 32.97 × 21
  4. Step 4: Simplify right side
    23.93x = 692.37
  5. Step 5: Solve for x
    x = 692.37/23.93
  6. Step 6: Final answer
    x = 28.94

Related Problems

Find fourth proportional to 11.96, 16.49 and 10.50
Half scale
Find fourth proportional to 47.85, 65.94 and 42
Double scale
Find fourth proportional to 24.93, 34.35 and 22
Similar ratio
Find fourth proportional to 35.89, 49.46 and 31.50
1.5x scale

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.