Home / 31,849.41-47,794.92-12,128.16

Finding the Fourth Proportional to 31,849.41, 47,794.92 and 12,128.16

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Solution

The fourth proportional to 31,849.41, 47,794.92 and 12,128.16 is: 18,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,849.41 : 47,794.92 = 12,128.16 : x
  2. Step 2: Convert to fraction form
    31,849.41/47,794.92 = 12,128.16/x
  3. Step 3: Cross multiply
    31,849.41x = 47,794.92 × 12,128.16
  4. Step 4: Simplify right side
    31,849.41x = 579,664,436.95
  5. Step 5: Solve for x
    x = 579,664,436.95/31,849.41
  6. Step 6: Final answer
    x = 18,200.16

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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.