Home / 31,905.83-47,858.74-8,531.66

Finding the Fourth Proportional to 31,905.83, 47,858.74 and 8,531.66

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Solution

The fourth proportional to 31,905.83, 47,858.74 and 8,531.66 is: 12,797.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.83 : 47,858.74 = 8,531.66 : x
  2. Step 2: Convert to fraction form
    31,905.83/47,858.74 = 8,531.66/x
  3. Step 3: Cross multiply
    31,905.83x = 47,858.74 × 8,531.66
  4. Step 4: Simplify right side
    31,905.83x = 408,314,258.41
  5. Step 5: Solve for x
    x = 408,314,258.41/31,905.83
  6. Step 6: Final answer
    x = 12,797.48

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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.