Home / 20,804.24-28,709.04-11,372.96

Finding the Fourth Proportional to 20,804.24, 28,709.04 and 11,372.96

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Solution

The fourth proportional to 20,804.24, 28,709.04 and 11,372.96 is: 15,694.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804.24 : 28,709.04 = 11,372.96 : x
  2. Step 2: Convert to fraction form
    20,804.24/28,709.04 = 11,372.96/x
  3. Step 3: Cross multiply
    20,804.24x = 28,709.04 × 11,372.96
  4. Step 4: Simplify right side
    20,804.24x = 326,506,763.56
  5. Step 5: Solve for x
    x = 326,506,763.56/20,804.24
  6. Step 6: Final answer
    x = 15,694.24

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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.