Home / 31,537.25-47,304.84-12,811.75

Finding the Fourth Proportional to 31,537.25, 47,304.84 and 12,811.75

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Solution

The fourth proportional to 31,537.25, 47,304.84 and 12,811.75 is: 19,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,537.25 : 47,304.84 = 12,811.75 : x
  2. Step 2: Convert to fraction form
    31,537.25/47,304.84 = 12,811.75/x
  3. Step 3: Cross multiply
    31,537.25x = 47,304.84 × 12,811.75
  4. Step 4: Simplify right side
    31,537.25x = 606,057,783.87
  5. Step 5: Solve for x
    x = 606,057,783.87/31,537.25
  6. Step 6: Final answer
    x = 19,217.20

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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.