Home / 19,328-28,992-5,477

Finding the Fourth Proportional to 19,328, 28,992 and 5,477

Calculator

Solution

The fourth proportional to 19,328, 28,992 and 5,477 is: 8,215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328 : 28,992 = 5,477 : x
  2. Step 2: Convert to fraction form
    19,328/28,992 = 5,477/x
  3. Step 3: Cross multiply
    19,328x = 28,992 × 5,477
  4. Step 4: Simplify right side
    19,328x = 158,789,184
  5. Step 5: Solve for x
    x = 158,789,184/19,328
  6. Step 6: Final answer
    x = 8,215.50

Related Problems

Find fourth proportional to 9,664, 14,496 and 2,738.50
Half scale
Find fourth proportional to 38,656, 57,984 and 10,954
Double scale
Find fourth proportional to 19,329, 28,993.50 and 5,478
Similar ratio
Find fourth proportional to 28,992, 43,488 and 8,215.50
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.