Home / 20,829.12-28,739.74-12,333.91

Finding the Fourth Proportional to 20,829.12, 28,739.74 and 12,333.91

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Solution

The fourth proportional to 20,829.12, 28,739.74 and 12,333.91 is: 17,018.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,829.12 : 28,739.74 = 12,333.91 : x
  2. Step 2: Convert to fraction form
    20,829.12/28,739.74 = 12,333.91/x
  3. Step 3: Cross multiply
    20,829.12x = 28,739.74 × 12,333.91
  4. Step 4: Simplify right side
    20,829.12x = 354,473,434.79
  5. Step 5: Solve for x
    x = 354,473,434.79/20,829.12
  6. Step 6: Final answer
    x = 17,018.16

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