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Finding the Fourth Proportional to 20,060.61, 30,090.78 and 15,681.75

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Solution

The fourth proportional to 20,060.61, 30,090.78 and 15,681.75 is: 23,522.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.61 : 30,090.78 = 15,681.75 : x
  2. Step 2: Convert to fraction form
    20,060.61/30,090.78 = 15,681.75/x
  3. Step 3: Cross multiply
    20,060.61x = 30,090.78 × 15,681.75
  4. Step 4: Simplify right side
    20,060.61x = 471,876,089.27
  5. Step 5: Solve for x
    x = 471,876,089.27/20,060.61
  6. Step 6: Final answer
    x = 23,522.52

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