Home / 20,757.84-31,062.32-19,367.52

Finding the Fourth Proportional to 20,757.84, 31,062.32 and 19,367.52

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Solution

The fourth proportional to 20,757.84, 31,062.32 and 19,367.52 is: 28,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,757.84 : 31,062.32 = 19,367.52 : x
  2. Step 2: Convert to fraction form
    20,757.84/31,062.32 = 19,367.52/x
  3. Step 3: Cross multiply
    20,757.84x = 31,062.32 × 19,367.52
  4. Step 4: Simplify right side
    20,757.84x = 601,600,103.85
  5. Step 5: Solve for x
    x = 601,600,103.85/20,757.84
  6. Step 6: Final answer
    x = 28,981.83

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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.