Home / 31,426.35-47,139.51-9,239.91

Finding the Fourth Proportional to 31,426.35, 47,139.51 and 9,239.91

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Solution

The fourth proportional to 31,426.35, 47,139.51 and 9,239.91 is: 13,859.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,426.35 : 47,139.51 = 9,239.91 : x
  2. Step 2: Convert to fraction form
    31,426.35/47,139.51 = 9,239.91/x
  3. Step 3: Cross multiply
    31,426.35x = 47,139.51 × 9,239.91
  4. Step 4: Simplify right side
    31,426.35x = 435,564,829.84
  5. Step 5: Solve for x
    x = 435,564,829.84/31,426.35
  6. Step 6: Final answer
    x = 13,859.86

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