Home / 20,792.28-28,693.56-11,360.88

Finding the Fourth Proportional to 20,792.28, 28,693.56 and 11,360.88

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Solution

The fourth proportional to 20,792.28, 28,693.56 and 11,360.88 is: 15,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.28 : 28,693.56 = 11,360.88 : x
  2. Step 2: Convert to fraction form
    20,792.28/28,693.56 = 11,360.88/x
  3. Step 3: Cross multiply
    20,792.28x = 28,693.56 × 11,360.88
  4. Step 4: Simplify right side
    20,792.28x = 325,984,091.93
  5. Step 5: Solve for x
    x = 325,984,091.93/20,792.28
  6. Step 6: Final answer
    x = 15,678.13

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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.