Home / 20,956.86-31,271.94-19,093.86

Finding the Fourth Proportional to 20,956.86, 31,271.94 and 19,093.86

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Solution

The fourth proportional to 20,956.86, 31,271.94 and 19,093.86 is: 28,491.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,956.86 : 31,271.94 = 19,093.86 : x
  2. Step 2: Convert to fraction form
    20,956.86/31,271.94 = 19,093.86/x
  3. Step 3: Cross multiply
    20,956.86x = 31,271.94 × 19,093.86
  4. Step 4: Simplify right side
    20,956.86x = 597,102,044.29
  5. Step 5: Solve for x
    x = 597,102,044.29/20,956.86
  6. Step 6: Final answer
    x = 28,491.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.