Home / 19,823.82-27,352.38-13,451.28

Finding the Fourth Proportional to 19,823.82, 27,352.38 and 13,451.28

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Solution

The fourth proportional to 19,823.82, 27,352.38 and 13,451.28 is: 18,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.82 : 27,352.38 = 13,451.28 : x
  2. Step 2: Convert to fraction form
    19,823.82/27,352.38 = 13,451.28/x
  3. Step 3: Cross multiply
    19,823.82x = 27,352.38 × 13,451.28
  4. Step 4: Simplify right side
    19,823.82x = 367,924,522.05
  5. Step 5: Solve for x
    x = 367,924,522.05/19,823.82
  6. Step 6: Final answer
    x = 18,559.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.