Home / 20,748.99-31,128.09-5,956.77

Finding the Fourth Proportional to 20,748.99, 31,128.09 and 5,956.77

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Solution

The fourth proportional to 20,748.99, 31,128.09 and 5,956.77 is: 8,936.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.99 : 31,128.09 = 5,956.77 : x
  2. Step 2: Convert to fraction form
    20,748.99/31,128.09 = 5,956.77/x
  3. Step 3: Cross multiply
    20,748.99x = 31,128.09 × 5,956.77
  4. Step 4: Simplify right side
    20,748.99x = 185,422,872.67
  5. Step 5: Solve for x
    x = 185,422,872.67/20,748.99
  6. Step 6: Final answer
    x = 8,936.48

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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.