Home / 47,999.09-72,002.48-12,938.24

Finding the Fourth Proportional to 47,999.09, 72,002.48 and 12,938.24

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Solution

The fourth proportional to 47,999.09, 72,002.48 and 12,938.24 is: 19,408.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.09 : 72,002.48 = 12,938.24 : x
  2. Step 2: Convert to fraction form
    47,999.09/72,002.48 = 12,938.24/x
  3. Step 3: Cross multiply
    47,999.09x = 72,002.48 × 12,938.24
  4. Step 4: Simplify right side
    47,999.09x = 931,584,942.13
  5. Step 5: Solve for x
    x = 931,584,942.13/47,999.09
  6. Step 6: Final answer
    x = 19,408.39

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