Home / 31,905.33-47,857.99-8,531.16

Finding the Fourth Proportional to 31,905.33, 47,857.99 and 8,531.16

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Solution

The fourth proportional to 31,905.33, 47,857.99 and 8,531.16 is: 12,796.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,905.33 : 47,857.99 = 8,531.16 : x
  2. Step 2: Convert to fraction form
    31,905.33/47,857.99 = 8,531.16/x
  3. Step 3: Cross multiply
    31,905.33x = 47,857.99 × 8,531.16
  4. Step 4: Simplify right side
    31,905.33x = 408,283,985.17
  5. Step 5: Solve for x
    x = 408,283,985.17/31,905.33
  6. Step 6: Final answer
    x = 12,796.73

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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.