Home / 31,469.46-47,212.32-11,748.20

Finding the Fourth Proportional to 31,469.46, 47,212.32 and 11,748.20

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Solution

The fourth proportional to 31,469.46, 47,212.32 and 11,748.20 is: 17,625.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,469.46 : 47,212.32 = 11,748.20 : x
  2. Step 2: Convert to fraction form
    31,469.46/47,212.32 = 11,748.20/x
  3. Step 3: Cross multiply
    31,469.46x = 47,212.32 × 11,748.20
  4. Step 4: Simplify right side
    31,469.46x = 554,659,777.82
  5. Step 5: Solve for x
    x = 554,659,777.82/31,469.46
  6. Step 6: Final answer
    x = 17,625.34

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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.