Home / 21,256.93-31,870.96-11,903.38

Finding the Fourth Proportional to 21,256.93, 31,870.96 and 11,903.38

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Solution

The fourth proportional to 21,256.93, 31,870.96 and 11,903.38 is: 17,846.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.93 : 31,870.96 = 11,903.38 : x
  2. Step 2: Convert to fraction form
    21,256.93/31,870.96 = 11,903.38/x
  3. Step 3: Cross multiply
    21,256.93x = 31,870.96 × 11,903.38
  4. Step 4: Simplify right side
    21,256.93x = 379,372,147.84
  5. Step 5: Solve for x
    x = 379,372,147.84/21,256.93
  6. Step 6: Final answer
    x = 17,846.99

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