Home / 20,725.22-28,601.08-11,293.76

Finding the Fourth Proportional to 20,725.22, 28,601.08 and 11,293.76

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Solution

The fourth proportional to 20,725.22, 28,601.08 and 11,293.76 is: 15,585.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.22 : 28,601.08 = 11,293.76 : x
  2. Step 2: Convert to fraction form
    20,725.22/28,601.08 = 11,293.76/x
  3. Step 3: Cross multiply
    20,725.22x = 28,601.08 × 11,293.76
  4. Step 4: Simplify right side
    20,725.22x = 323,013,733.26
  5. Step 5: Solve for x
    x = 323,013,733.26/20,725.22
  6. Step 6: Final answer
    x = 15,585.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.