Home / 13,932.48-20,900.68-4,072.50

Finding the Fourth Proportional to 13,932.48, 20,900.68 and 4,072.50

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Solution

The fourth proportional to 13,932.48, 20,900.68 and 4,072.50 is: 6,109.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.48 : 20,900.68 = 4,072.50 : x
  2. Step 2: Convert to fraction form
    13,932.48/20,900.68 = 4,072.50/x
  3. Step 3: Cross multiply
    13,932.48x = 20,900.68 × 4,072.50
  4. Step 4: Simplify right side
    13,932.48x = 85,118,019.30
  5. Step 5: Solve for x
    x = 85,118,019.30/13,932.48
  6. Step 6: Final answer
    x = 6,109.32

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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.