Home / 21,978.84-30,332.97-12,548.82

Finding the Fourth Proportional to 21,978.84, 30,332.97 and 12,548.82

Calculator

Solution

The fourth proportional to 21,978.84, 30,332.97 and 12,548.82 is: 17,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,978.84 : 30,332.97 = 12,548.82 : x
  2. Step 2: Convert to fraction form
    21,978.84/30,332.97 = 12,548.82/x
  3. Step 3: Cross multiply
    21,978.84x = 30,332.97 × 12,548.82
  4. Step 4: Simplify right side
    21,978.84x = 380,642,980.60
  5. Step 5: Solve for x
    x = 380,642,980.60/21,978.84
  6. Step 6: Final answer
    x = 17,318.61

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.