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Finding the Fourth Proportional to 20,057.01, 27,680.76 and 11,559.48

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Solution

The fourth proportional to 20,057.01, 27,680.76 and 11,559.48 is: 15,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.01 : 27,680.76 = 11,559.48 : x
  2. Step 2: Convert to fraction form
    20,057.01/27,680.76 = 11,559.48/x
  3. Step 3: Cross multiply
    20,057.01x = 27,680.76 × 11,559.48
  4. Step 4: Simplify right side
    20,057.01x = 319,975,191.60
  5. Step 5: Solve for x
    x = 319,975,191.60/20,057.01
  6. Step 6: Final answer
    x = 15,953.28

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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.