Home / 20,068.72-30,103.38-9,539.82

Finding the Fourth Proportional to 20,068.72, 30,103.38 and 9,539.82

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Solution

The fourth proportional to 20,068.72, 30,103.38 and 9,539.82 is: 14,309.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.72 : 30,103.38 = 9,539.82 : x
  2. Step 2: Convert to fraction form
    20,068.72/30,103.38 = 9,539.82/x
  3. Step 3: Cross multiply
    20,068.72x = 30,103.38 × 9,539.82
  4. Step 4: Simplify right side
    20,068.72x = 287,180,826.59
  5. Step 5: Solve for x
    x = 287,180,826.59/20,068.72
  6. Step 6: Final answer
    x = 14,309.87

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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.