Home / 31,799.50-43,885.36-18,371.32

Finding the Fourth Proportional to 31,799.50, 43,885.36 and 18,371.32

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Solution

The fourth proportional to 31,799.50, 43,885.36 and 18,371.32 is: 25,353.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,799.50 : 43,885.36 = 18,371.32 : x
  2. Step 2: Convert to fraction form
    31,799.50/43,885.36 = 18,371.32/x
  3. Step 3: Cross multiply
    31,799.50x = 43,885.36 × 18,371.32
  4. Step 4: Simplify right side
    31,799.50x = 806,231,991.88
  5. Step 5: Solve for x
    x = 806,231,991.88/31,799.50
  6. Step 6: Final answer
    x = 25,353.61

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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.