Home / 31,935.88-47,904.18-12,215.44

Finding the Fourth Proportional to 31,935.88, 47,904.18 and 12,215.44

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Solution

The fourth proportional to 31,935.88, 47,904.18 and 12,215.44 is: 18,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,935.88 : 47,904.18 = 12,215.44 : x
  2. Step 2: Convert to fraction form
    31,935.88/47,904.18 = 12,215.44/x
  3. Step 3: Cross multiply
    31,935.88x = 47,904.18 × 12,215.44
  4. Step 4: Simplify right side
    31,935.88x = 585,170,636.54
  5. Step 5: Solve for x
    x = 585,170,636.54/31,935.88
  6. Step 6: Final answer
    x = 18,323.30

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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.