Home / 31,469.42-47,204.25-12,749.81

Finding the Fourth Proportional to 31,469.42, 47,204.25 and 12,749.81

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Solution

The fourth proportional to 31,469.42, 47,204.25 and 12,749.81 is: 19,124.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.42 : 47,204.25 = 12,749.81 : x
  2. Step 2: Convert to fraction form
    31,469.42/47,204.25 = 12,749.81/x
  3. Step 3: Cross multiply
    31,469.42x = 47,204.25 × 12,749.81
  4. Step 4: Simplify right side
    31,469.42x = 601,845,218.69
  5. Step 5: Solve for x
    x = 601,845,218.69/31,469.42
  6. Step 6: Final answer
    x = 19,124.76

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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.