Home / 21,155.03-31,728.09-6,359.57

Finding the Fourth Proportional to 21,155.03, 31,728.09 and 6,359.57

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Solution

The fourth proportional to 21,155.03, 31,728.09 and 6,359.57 is: 9,538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155.03 : 31,728.09 = 6,359.57 : x
  2. Step 2: Convert to fraction form
    21,155.03/31,728.09 = 6,359.57/x
  3. Step 3: Cross multiply
    21,155.03x = 31,728.09 × 6,359.57
  4. Step 4: Simplify right side
    21,155.03x = 201,777,009.32
  5. Step 5: Solve for x
    x = 201,777,009.32/21,155.03
  6. Step 6: Final answer
    x = 9,538.02

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