Home / 30,820-42,531.44-16,672.80

Finding the Fourth Proportional to 30,820, 42,531.44 and 16,672.80

Calculator

Solution

The fourth proportional to 30,820, 42,531.44 and 16,672.80 is: 23,008.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820 : 42,531.44 = 16,672.80 : x
  2. Step 2: Convert to fraction form
    30,820/42,531.44 = 16,672.80/x
  3. Step 3: Cross multiply
    30,820x = 42,531.44 × 16,672.80
  4. Step 4: Simplify right side
    30,820x = 709,118,192.83
  5. Step 5: Solve for x
    x = 709,118,192.83/30,820
  6. Step 6: Final answer
    x = 23,008.38

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.