Home / 20,748.96-31,128.06-5,956.74

Finding the Fourth Proportional to 20,748.96, 31,128.06 and 5,956.74

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Solution

The fourth proportional to 20,748.96, 31,128.06 and 5,956.74 is: 8,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,748.96 : 31,128.06 = 5,956.74 : x
  2. Step 2: Convert to fraction form
    20,748.96/31,128.06 = 5,956.74/x
  3. Step 3: Cross multiply
    20,748.96x = 31,128.06 × 5,956.74
  4. Step 4: Simplify right side
    20,748.96x = 185,421,760.12
  5. Step 5: Solve for x
    x = 185,421,760.12/20,748.96
  6. Step 6: Final answer
    x = 8,936.44

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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.