Home / 20,829.07-28,744.57-11,397.63

Finding the Fourth Proportional to 20,829.07, 28,744.57 and 11,397.63

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Solution

The fourth proportional to 20,829.07, 28,744.57 and 11,397.63 is: 15,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.07 : 28,744.57 = 11,397.63 : x
  2. Step 2: Convert to fraction form
    20,829.07/28,744.57 = 11,397.63/x
  3. Step 3: Cross multiply
    20,829.07x = 28,744.57 × 11,397.63
  4. Step 4: Simplify right side
    20,829.07x = 327,619,973.37
  5. Step 5: Solve for x
    x = 327,619,973.37/20,829.07
  6. Step 6: Final answer
    x = 15,728.98

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