Home / 31,899.36-47,856.24-12,177.44

Finding the Fourth Proportional to 31,899.36, 47,856.24 and 12,177.44

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Solution

The fourth proportional to 31,899.36, 47,856.24 and 12,177.44 is: 18,268.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,899.36 : 47,856.24 = 12,177.44 : x
  2. Step 2: Convert to fraction form
    31,899.36/47,856.24 = 12,177.44/x
  3. Step 3: Cross multiply
    31,899.36x = 47,856.24 × 12,177.44
  4. Step 4: Simplify right side
    31,899.36x = 582,766,491.23
  5. Step 5: Solve for x
    x = 582,766,491.23/31,899.36
  6. Step 6: Final answer
    x = 18,268.91

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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.