Home / 13,933.38-20,900.52-4,071.81

Finding the Fourth Proportional to 13,933.38, 20,900.52 and 4,071.81

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Solution

The fourth proportional to 13,933.38, 20,900.52 and 4,071.81 is: 6,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.38 : 20,900.52 = 4,071.81 : x
  2. Step 2: Convert to fraction form
    13,933.38/20,900.52 = 4,071.81/x
  3. Step 3: Cross multiply
    13,933.38x = 20,900.52 × 4,071.81
  4. Step 4: Simplify right side
    13,933.38x = 85,102,946.34
  5. Step 5: Solve for x
    x = 85,102,946.34/13,933.38
  6. Step 6: Final answer
    x = 6,107.85

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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.