Home / 20,363.96-30,536.24-7,889.82

Finding the Fourth Proportional to 20,363.96, 30,536.24 and 7,889.82

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Solution

The fourth proportional to 20,363.96, 30,536.24 and 7,889.82 is: 11,830.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,363.96 : 30,536.24 = 7,889.82 : x
  2. Step 2: Convert to fraction form
    20,363.96/30,536.24 = 7,889.82/x
  3. Step 3: Cross multiply
    20,363.96x = 30,536.24 × 7,889.82
  4. Step 4: Simplify right side
    20,363.96x = 240,925,437.08
  5. Step 5: Solve for x
    x = 240,925,437.08/20,363.96
  6. Step 6: Final answer
    x = 11,830.97

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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.