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Finding the Fourth Proportional to 20,719.70, 31,070.44 and 5,925.25

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Solution

The fourth proportional to 20,719.70, 31,070.44 and 5,925.25 is: 8,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,719.70 : 31,070.44 = 5,925.25 : x
  2. Step 2: Convert to fraction form
    20,719.70/31,070.44 = 5,925.25/x
  3. Step 3: Cross multiply
    20,719.70x = 31,070.44 × 5,925.25
  4. Step 4: Simplify right side
    20,719.70x = 184,100,137.53
  5. Step 5: Solve for x
    x = 184,100,137.53/20,719.70
  6. Step 6: Final answer
    x = 8,885.27

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