Home / 31,481.44-47,216.68-11,760.16

Finding the Fourth Proportional to 31,481.44, 47,216.68 and 11,760.16

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Solution

The fourth proportional to 31,481.44, 47,216.68 and 11,760.16 is: 17,638.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,481.44 : 47,216.68 = 11,760.16 : x
  2. Step 2: Convert to fraction form
    31,481.44/47,216.68 = 11,760.16/x
  3. Step 3: Cross multiply
    31,481.44x = 47,216.68 × 11,760.16
  4. Step 4: Simplify right side
    31,481.44x = 555,275,711.47
  5. Step 5: Solve for x
    x = 555,275,711.47/31,481.44
  6. Step 6: Final answer
    x = 17,638.19

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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.