Home / 20,594.66-28,420.62-11,163.22

Finding the Fourth Proportional to 20,594.66, 28,420.62 and 11,163.22

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Solution

The fourth proportional to 20,594.66, 28,420.62 and 11,163.22 is: 15,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,594.66 : 28,420.62 = 11,163.22 : x
  2. Step 2: Convert to fraction form
    20,594.66/28,420.62 = 11,163.22/x
  3. Step 3: Cross multiply
    20,594.66x = 28,420.62 × 11,163.22
  4. Step 4: Simplify right side
    20,594.66x = 317,265,633.60
  5. Step 5: Solve for x
    x = 317,265,633.60/20,594.66
  6. Step 6: Final answer
    x = 15,405.24

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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.