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Finding the Fourth Proportional to 19,949.76, 29,933.28 and 7,646.40

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Solution

The fourth proportional to 19,949.76, 29,933.28 and 7,646.40 is: 11,472.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,949.76 : 29,933.28 = 7,646.40 : x
  2. Step 2: Convert to fraction form
    19,949.76/29,933.28 = 7,646.40/x
  3. Step 3: Cross multiply
    19,949.76x = 29,933.28 × 7,646.40
  4. Step 4: Simplify right side
    19,949.76x = 228,881,832.19
  5. Step 5: Solve for x
    x = 228,881,832.19/19,949.76
  6. Step 6: Final answer
    x = 11,472.91

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