Home / 55,290-82,935-18,354

Finding the Fourth Proportional to 55,290, 82,935 and 18,354

Calculator

Solution

The fourth proportional to 55,290, 82,935 and 18,354 is: 27,531

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290 : 82,935 = 18,354 : x
  2. Step 2: Convert to fraction form
    55,290/82,935 = 18,354/x
  3. Step 3: Cross multiply
    55,290x = 82,935 × 18,354
  4. Step 4: Simplify right side
    55,290x = 1,522,188,990
  5. Step 5: Solve for x
    x = 1,522,188,990/55,290
  6. Step 6: Final answer
    x = 27,531

Related Problems

Find fourth proportional to 27,645, 41,467.50 and 9,177
Half scale
Find fourth proportional to 110,580, 165,870 and 36,708
Double scale
Find fourth proportional to 55,291, 82,936.50 and 18,355
Similar ratio
Find fourth proportional to 82,935, 124,402.50 and 27,531
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.