Home / 13,381.12-20,072.72-4,020.41

Finding the Fourth Proportional to 13,381.12, 20,072.72 and 4,020.41

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Solution

The fourth proportional to 13,381.12, 20,072.72 and 4,020.41 is: 6,030.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.12 : 20,072.72 = 4,020.41 : x
  2. Step 2: Convert to fraction form
    13,381.12/20,072.72 = 4,020.41/x
  3. Step 3: Cross multiply
    13,381.12x = 20,072.72 × 4,020.41
  4. Step 4: Simplify right side
    13,381.12x = 80,700,564.22
  5. Step 5: Solve for x
    x = 80,700,564.22/13,381.12
  6. Step 6: Final answer
    x = 6,030.93

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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.