Home / 33,280-49,920-8,656

Finding the Fourth Proportional to 33,280, 49,920 and 8,656

Calculator

Solution

The fourth proportional to 33,280, 49,920 and 8,656 is: 12,984

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,280 : 49,920 = 8,656 : x
  2. Step 2: Convert to fraction form
    33,280/49,920 = 8,656/x
  3. Step 3: Cross multiply
    33,280x = 49,920 × 8,656
  4. Step 4: Simplify right side
    33,280x = 432,107,520
  5. Step 5: Solve for x
    x = 432,107,520/33,280
  6. Step 6: Final answer
    x = 12,984

Related Problems

Find fourth proportional to 16,640, 24,960 and 4,328
Half scale
Find fourth proportional to 66,560, 99,840 and 17,312
Double scale
Find fourth proportional to 33,281, 49,921.50 and 8,657
Similar ratio
Find fourth proportional to 49,920, 74,880 and 12,984
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.