Home / 31,701.57-47,511.64-11,956.60

Finding the Fourth Proportional to 31,701.57, 47,511.64 and 11,956.60

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Solution

The fourth proportional to 31,701.57, 47,511.64 and 11,956.60 is: 17,919.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,701.57 : 47,511.64 = 11,956.60 : x
  2. Step 2: Convert to fraction form
    31,701.57/47,511.64 = 11,956.60/x
  3. Step 3: Cross multiply
    31,701.57x = 47,511.64 × 11,956.60
  4. Step 4: Simplify right side
    31,701.57x = 568,077,674.82
  5. Step 5: Solve for x
    x = 568,077,674.82/31,701.57
  6. Step 6: Final answer
    x = 17,919.54

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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.