Home / 21,152.39-29,192.35-11,720.95

Finding the Fourth Proportional to 21,152.39, 29,192.35 and 11,720.95

Calculator

Solution

The fourth proportional to 21,152.39, 29,192.35 and 11,720.95 is: 16,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.39 : 29,192.35 = 11,720.95 : x
  2. Step 2: Convert to fraction form
    21,152.39/29,192.35 = 11,720.95/x
  3. Step 3: Cross multiply
    21,152.39x = 29,192.35 × 11,720.95
  4. Step 4: Simplify right side
    21,152.39x = 342,162,158.63
  5. Step 5: Solve for x
    x = 342,162,158.63/21,152.39
  6. Step 6: Final answer
    x = 16,176.05

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.