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Finding the Fourth Proportional to 27,803.77, 38,368.77 and 15,866.80

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Solution

The fourth proportional to 27,803.77, 38,368.77 and 15,866.80 is: 21,895.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.77 : 38,368.77 = 15,866.80 : x
  2. Step 2: Convert to fraction form
    27,803.77/38,368.77 = 15,866.80/x
  3. Step 3: Cross multiply
    27,803.77x = 38,368.77 × 15,866.80
  4. Step 4: Simplify right side
    27,803.77x = 608,789,599.84
  5. Step 5: Solve for x
    x = 608,789,599.84/27,803.77
  6. Step 6: Final answer
    x = 21,895.94

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