Home / 20,591.39-28,416.14-11,159.95

Finding the Fourth Proportional to 20,591.39, 28,416.14 and 11,159.95

Calculator

Solution

The fourth proportional to 20,591.39, 28,416.14 and 11,159.95 is: 15,400.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.39 : 28,416.14 = 11,159.95 : x
  2. Step 2: Convert to fraction form
    20,591.39/28,416.14 = 11,159.95/x
  3. Step 3: Cross multiply
    20,591.39x = 28,416.14 × 11,159.95
  4. Step 4: Simplify right side
    20,591.39x = 317,122,701.59
  5. Step 5: Solve for x
    x = 317,122,701.59/20,591.39
  6. Step 6: Final answer
    x = 15,400.74

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.