Home / 13,929.93-20,895.75-4,069.89

Finding the Fourth Proportional to 13,929.93, 20,895.75 and 4,069.89

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Solution

The fourth proportional to 13,929.93, 20,895.75 and 4,069.89 is: 6,105.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.93 : 20,895.75 = 4,069.89 : x
  2. Step 2: Convert to fraction form
    13,929.93/20,895.75 = 4,069.89/x
  3. Step 3: Cross multiply
    13,929.93x = 20,895.75 × 4,069.89
  4. Step 4: Simplify right side
    13,929.93x = 85,043,403.97
  5. Step 5: Solve for x
    x = 85,043,403.97/13,929.93
  6. Step 6: Final answer
    x = 6,105.08

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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.