Home / 21,643.11-29,868.14-13,254.87

Finding the Fourth Proportional to 21,643.11, 29,868.14 and 13,254.87

Calculator

Solution

The fourth proportional to 21,643.11, 29,868.14 and 13,254.87 is: 18,292.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,643.11 : 29,868.14 = 13,254.87 : x
  2. Step 2: Convert to fraction form
    21,643.11/29,868.14 = 13,254.87/x
  3. Step 3: Cross multiply
    21,643.11x = 29,868.14 × 13,254.87
  4. Step 4: Simplify right side
    21,643.11x = 395,898,246.57
  5. Step 5: Solve for x
    x = 395,898,246.57/21,643.11
  6. Step 6: Final answer
    x = 18,292.11

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.