Home / 20,916.60-31,418.64-17,636.10

Finding the Fourth Proportional to 20,916.60, 31,418.64 and 17,636.10

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Solution

The fourth proportional to 20,916.60, 31,418.64 and 17,636.10 is: 26,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.60 : 31,418.64 = 17,636.10 : x
  2. Step 2: Convert to fraction form
    20,916.60/31,418.64 = 17,636.10/x
  3. Step 3: Cross multiply
    20,916.60x = 31,418.64 × 17,636.10
  4. Step 4: Simplify right side
    20,916.60x = 554,102,276.90
  5. Step 5: Solve for x
    x = 554,102,276.90/20,916.60
  6. Step 6: Final answer
    x = 26,491.03

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