Home / 20,072.64-27,700.47-11,120.28

Finding the Fourth Proportional to 20,072.64, 27,700.47 and 11,120.28

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Solution

The fourth proportional to 20,072.64, 27,700.47 and 11,120.28 is: 15,346.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.64 : 27,700.47 = 11,120.28 : x
  2. Step 2: Convert to fraction form
    20,072.64/27,700.47 = 11,120.28/x
  3. Step 3: Cross multiply
    20,072.64x = 27,700.47 × 11,120.28
  4. Step 4: Simplify right side
    20,072.64x = 308,036,926.93
  5. Step 5: Solve for x
    x = 308,036,926.93/20,072.64
  6. Step 6: Final answer
    x = 15,346.11

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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.