Home / 13,943.15-20,909.43-4,581.42

Finding the Fourth Proportional to 13,943.15, 20,909.43 and 4,581.42

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Solution

The fourth proportional to 13,943.15, 20,909.43 and 4,581.42 is: 6,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.15 : 20,909.43 = 4,581.42 : x
  2. Step 2: Convert to fraction form
    13,943.15/20,909.43 = 4,581.42/x
  3. Step 3: Cross multiply
    13,943.15x = 20,909.43 × 4,581.42
  4. Step 4: Simplify right side
    13,943.15x = 95,794,942.96
  5. Step 5: Solve for x
    x = 95,794,942.96/13,943.15
  6. Step 6: Final answer
    x = 6,870.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.