Home / 30,016-45,024-8,128

Finding the Fourth Proportional to 30,016, 45,024 and 8,128

Calculator

Solution

The fourth proportional to 30,016, 45,024 and 8,128 is: 12,192

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,016 : 45,024 = 8,128 : x
  2. Step 2: Convert to fraction form
    30,016/45,024 = 8,128/x
  3. Step 3: Cross multiply
    30,016x = 45,024 × 8,128
  4. Step 4: Simplify right side
    30,016x = 365,955,072
  5. Step 5: Solve for x
    x = 365,955,072/30,016
  6. Step 6: Final answer
    x = 12,192

Related Problems

Find fourth proportional to 15,008, 22,512 and 4,064
Half scale
Find fourth proportional to 60,032, 90,048 and 16,256
Double scale
Find fourth proportional to 30,017, 45,025.50 and 8,129
Similar ratio
Find fourth proportional to 45,024, 67,536 and 12,192
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.