Home / 67,976-101,964-18,728

Finding the Fourth Proportional to 67,976, 101,964 and 18,728

Calculator

Solution

The fourth proportional to 67,976, 101,964 and 18,728 is: 28,092

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,976 : 101,964 = 18,728 : x
  2. Step 2: Convert to fraction form
    67,976/101,964 = 18,728/x
  3. Step 3: Cross multiply
    67,976x = 101,964 × 18,728
  4. Step 4: Simplify right side
    67,976x = 1,909,581,792
  5. Step 5: Solve for x
    x = 1,909,581,792/67,976
  6. Step 6: Final answer
    x = 28,092

Related Problems

Find fourth proportional to 33,988, 50,982 and 9,364
Half scale
Find fourth proportional to 135,952, 203,928 and 37,456
Double scale
Find fourth proportional to 67,977, 101,965.50 and 18,729
Similar ratio
Find fourth proportional to 101,964, 152,946 and 28,092
1.5x scale

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.