Home / 31,905.42-47,858.13-8,531.25

Finding the Fourth Proportional to 31,905.42, 47,858.13 and 8,531.25

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Solution

The fourth proportional to 31,905.42, 47,858.13 and 8,531.25 is: 12,796.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.42 : 47,858.13 = 8,531.25 : x
  2. Step 2: Convert to fraction form
    31,905.42/47,858.13 = 8,531.25/x
  3. Step 3: Cross multiply
    31,905.42x = 47,858.13 × 8,531.25
  4. Step 4: Simplify right side
    31,905.42x = 408,289,671.56
  5. Step 5: Solve for x
    x = 408,289,671.56/31,905.42
  6. Step 6: Final answer
    x = 12,796.88

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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.