Home / 25,431.84-38,142-8,791.20

Finding the Fourth Proportional to 25,431.84, 38,142 and 8,791.20

Calculator

Solution

The fourth proportional to 25,431.84, 38,142 and 8,791.20 is: 13,184.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.84 : 38,142 = 8,791.20 : x
  2. Step 2: Convert to fraction form
    25,431.84/38,142 = 8,791.20/x
  3. Step 3: Cross multiply
    25,431.84x = 38,142 × 8,791.20
  4. Step 4: Simplify right side
    25,431.84x = 335,313,950.40
  5. Step 5: Solve for x
    x = 335,313,950.40/25,431.84
  6. Step 6: Final answer
    x = 13,184.81

Related Problems

Find fourth proportional to 12,715.92, 19,071 and 4,395.60
Half scale
Find fourth proportional to 50,863.68, 76,284 and 17,582.40
Double scale
Find fourth proportional to 25,432.84, 38,143.50 and 8,792.20
Similar ratio
Find fourth proportional to 38,147.76, 57,213 and 13,186.80
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.