Home / 20,068.63-30,039.81-13,791.94

Finding the Fourth Proportional to 20,068.63, 30,039.81 and 13,791.94

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Solution

The fourth proportional to 20,068.63, 30,039.81 and 13,791.94 is: 20,644.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.63 : 30,039.81 = 13,791.94 : x
  2. Step 2: Convert to fraction form
    20,068.63/30,039.81 = 13,791.94/x
  3. Step 3: Cross multiply
    20,068.63x = 30,039.81 × 13,791.94
  4. Step 4: Simplify right side
    20,068.63x = 414,307,257.13
  5. Step 5: Solve for x
    x = 414,307,257.13/20,068.63
  6. Step 6: Final answer
    x = 20,644.52

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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.