Home / 31,453.29-43,406.58-18,027.09

Finding the Fourth Proportional to 31,453.29, 43,406.58 and 18,027.09

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Solution

The fourth proportional to 31,453.29, 43,406.58 and 18,027.09 is: 24,877.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453.29 : 43,406.58 = 18,027.09 : x
  2. Step 2: Convert to fraction form
    31,453.29/43,406.58 = 18,027.09/x
  3. Step 3: Cross multiply
    31,453.29x = 43,406.58 × 18,027.09
  4. Step 4: Simplify right side
    31,453.29x = 782,494,324.25
  5. Step 5: Solve for x
    x = 782,494,324.25/31,453.29
  6. Step 6: Final answer
    x = 24,877.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.