Home / 13,932.84-20,903.22-4,072.08

Finding the Fourth Proportional to 13,932.84, 20,903.22 and 4,072.08

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Solution

The fourth proportional to 13,932.84, 20,903.22 and 4,072.08 is: 6,109.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.84 : 20,903.22 = 4,072.08 : x
  2. Step 2: Convert to fraction form
    13,932.84/20,903.22 = 4,072.08/x
  3. Step 3: Cross multiply
    13,932.84x = 20,903.22 × 4,072.08
  4. Step 4: Simplify right side
    13,932.84x = 85,119,584.10
  5. Step 5: Solve for x
    x = 85,119,584.10/13,932.84
  6. Step 6: Final answer
    x = 6,109.28

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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.