Home / 21,011.06-28,996.56-11,579.60

Finding the Fourth Proportional to 21,011.06, 28,996.56 and 11,579.60

Calculator

Solution

The fourth proportional to 21,011.06, 28,996.56 and 11,579.60 is: 15,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011.06 : 28,996.56 = 11,579.60 : x
  2. Step 2: Convert to fraction form
    21,011.06/28,996.56 = 11,579.60/x
  3. Step 3: Cross multiply
    21,011.06x = 28,996.56 × 11,579.60
  4. Step 4: Simplify right side
    21,011.06x = 335,768,566.18
  5. Step 5: Solve for x
    x = 335,768,566.18/21,011.06
  6. Step 6: Final answer
    x = 15,980.56

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.