Home / 23,411-35,120-8,618.78

Finding the Fourth Proportional to 23,411, 35,120 and 8,618.78

Calculator

Solution

The fourth proportional to 23,411, 35,120 and 8,618.78 is: 12,929.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,411 : 35,120 = 8,618.78 : x
  2. Step 2: Convert to fraction form
    23,411/35,120 = 8,618.78/x
  3. Step 3: Cross multiply
    23,411x = 35,120 × 8,618.78
  4. Step 4: Simplify right side
    23,411x = 302,691,553.60
  5. Step 5: Solve for x
    x = 302,691,553.60/23,411
  6. Step 6: Final answer
    x = 12,929.46

Related Problems

Find fourth proportional to 11,705.50, 17,560 and 4,309.39
Half scale
Find fourth proportional to 46,822, 70,240 and 17,237.56
Double scale
Find fourth proportional to 23,412, 35,121.50 and 8,619.78
Similar ratio
Find fourth proportional to 35,116.50, 52,680 and 12,928.17
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.