Home / 31,469.36-47,204.16-12,749.75

Finding the Fourth Proportional to 31,469.36, 47,204.16 and 12,749.75

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Solution

The fourth proportional to 31,469.36, 47,204.16 and 12,749.75 is: 19,124.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.36 : 47,204.16 = 12,749.75 : x
  2. Step 2: Convert to fraction form
    31,469.36/47,204.16 = 12,749.75/x
  3. Step 3: Cross multiply
    31,469.36x = 47,204.16 × 12,749.75
  4. Step 4: Simplify right side
    31,469.36x = 601,841,238.96
  5. Step 5: Solve for x
    x = 601,841,238.96/31,469.36
  6. Step 6: Final answer
    x = 19,124.67

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1.5x scale

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.