Home / 30,681.40-45,997.80-16,830.40

Finding the Fourth Proportional to 30,681.40, 45,997.80 and 16,830.40

Calculator

Solution

The fourth proportional to 30,681.40, 45,997.80 and 16,830.40 is: 25,232.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,681.40 : 45,997.80 = 16,830.40 : x
  2. Step 2: Convert to fraction form
    30,681.40/45,997.80 = 16,830.40/x
  3. Step 3: Cross multiply
    30,681.40x = 45,997.80 × 16,830.40
  4. Step 4: Simplify right side
    30,681.40x = 774,161,373.12
  5. Step 5: Solve for x
    x = 774,161,373.12/30,681.40
  6. Step 6: Final answer
    x = 25,232.27

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.