Home / 29,718.40-40,977.78-18,948.90

Finding the Fourth Proportional to 29,718.40, 40,977.78 and 18,948.90

Calculator

Solution

The fourth proportional to 29,718.40, 40,977.78 and 18,948.90 is: 26,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,718.40 : 40,977.78 = 18,948.90 : x
  2. Step 2: Convert to fraction form
    29,718.40/40,977.78 = 18,948.90/x
  3. Step 3: Cross multiply
    29,718.40x = 40,977.78 × 18,948.90
  4. Step 4: Simplify right side
    29,718.40x = 776,483,855.44
  5. Step 5: Solve for x
    x = 776,483,855.44/29,718.40
  6. Step 6: Final answer
    x = 26,128.05

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.