Home / 21,033.81-31,541.51-7,876.96

Finding the Fourth Proportional to 21,033.81, 31,541.51 and 7,876.96

Calculator

Solution

The fourth proportional to 21,033.81, 31,541.51 and 7,876.96 is: 11,811.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033.81 : 31,541.51 = 7,876.96 : x
  2. Step 2: Convert to fraction form
    21,033.81/31,541.51 = 7,876.96/x
  3. Step 3: Cross multiply
    21,033.81x = 31,541.51 × 7,876.96
  4. Step 4: Simplify right side
    21,033.81x = 248,451,208.88
  5. Step 5: Solve for x
    x = 248,451,208.88/21,033.81
  6. Step 6: Final answer
    x = 11,811.99

Related Problems

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.