Home / 31,469.29-47,204.06-12,749.68

Finding the Fourth Proportional to 31,469.29, 47,204.06 and 12,749.68

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Solution

The fourth proportional to 31,469.29, 47,204.06 and 12,749.68 is: 19,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.29 : 47,204.06 = 12,749.68 : x
  2. Step 2: Convert to fraction form
    31,469.29/47,204.06 = 12,749.68/x
  3. Step 3: Cross multiply
    31,469.29x = 47,204.06 × 12,749.68
  4. Step 4: Simplify right side
    31,469.29x = 601,836,659.70
  5. Step 5: Solve for x
    x = 601,836,659.70/31,469.29
  6. Step 6: Final answer
    x = 19,124.57

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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.