Home / 20,801.96-28,706.62-11,370.52

Finding the Fourth Proportional to 20,801.96, 28,706.62 and 11,370.52

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Solution

The fourth proportional to 20,801.96, 28,706.62 and 11,370.52 is: 15,691.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.96 : 28,706.62 = 11,370.52 : x
  2. Step 2: Convert to fraction form
    20,801.96/28,706.62 = 11,370.52/x
  3. Step 3: Cross multiply
    20,801.96x = 28,706.62 × 11,370.52
  4. Step 4: Simplify right side
    20,801.96x = 326,409,196.84
  5. Step 5: Solve for x
    x = 326,409,196.84/20,801.96
  6. Step 6: Final answer
    x = 15,691.27

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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.