Home / 30,880.32-46,320.48-12,408

Finding the Fourth Proportional to 30,880.32, 46,320.48 and 12,408

Calculator

Solution

The fourth proportional to 30,880.32, 46,320.48 and 12,408 is: 18,612

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,880.32 : 46,320.48 = 12,408 : x
  2. Step 2: Convert to fraction form
    30,880.32/46,320.48 = 12,408/x
  3. Step 3: Cross multiply
    30,880.32x = 46,320.48 × 12,408
  4. Step 4: Simplify right side
    30,880.32x = 574,744,515.84
  5. Step 5: Solve for x
    x = 574,744,515.84/30,880.32
  6. Step 6: Final answer
    x = 18,612

Related Problems

Find fourth proportional to 15,440.16, 23,160.24 and 6,204
Half scale
Find fourth proportional to 61,760.64, 92,640.96 and 24,816
Double scale
Find fourth proportional to 30,881.32, 46,321.98 and 12,409
Similar ratio
Find fourth proportional to 46,320.48, 69,480.72 and 18,612
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.