Home / 31,968.78-47,960.09-12,247.32

Finding the Fourth Proportional to 31,968.78, 47,960.09 and 12,247.32

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Solution

The fourth proportional to 31,968.78, 47,960.09 and 12,247.32 is: 18,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,968.78 : 47,960.09 = 12,247.32 : x
  2. Step 2: Convert to fraction form
    31,968.78/47,960.09 = 12,247.32/x
  3. Step 3: Cross multiply
    31,968.78x = 47,960.09 × 12,247.32
  4. Step 4: Simplify right side
    31,968.78x = 587,382,508.22
  5. Step 5: Solve for x
    x = 587,382,508.22/31,968.78
  6. Step 6: Final answer
    x = 18,373.63

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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.