Home / 20,792.16-28,693.26-11,360.93

Finding the Fourth Proportional to 20,792.16, 28,693.26 and 11,360.93

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Solution

The fourth proportional to 20,792.16, 28,693.26 and 11,360.93 is: 15,678.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.16 : 28,693.26 = 11,360.93 : x
  2. Step 2: Convert to fraction form
    20,792.16/28,693.26 = 11,360.93/x
  3. Step 3: Cross multiply
    20,792.16x = 28,693.26 × 11,360.93
  4. Step 4: Simplify right side
    20,792.16x = 325,981,974.87
  5. Step 5: Solve for x
    x = 325,981,974.87/20,792.16
  6. Step 6: Final answer
    x = 15,678.12

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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.