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Finding the Fourth Proportional to 38,660.38, 57,988.74 and 13,700.02

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Solution

The fourth proportional to 38,660.38, 57,988.74 and 13,700.02 is: 20,549.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,660.38 : 57,988.74 = 13,700.02 : x
  2. Step 2: Convert to fraction form
    38,660.38/57,988.74 = 13,700.02/x
  3. Step 3: Cross multiply
    38,660.38x = 57,988.74 × 13,700.02
  4. Step 4: Simplify right side
    38,660.38x = 794,446,897.77
  5. Step 5: Solve for x
    x = 794,446,897.77/38,660.38
  6. Step 6: Final answer
    x = 20,549.38

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