Home / 31,758.91-43,824.13-18,334.50

Finding the Fourth Proportional to 31,758.91, 43,824.13 and 18,334.50

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Solution

The fourth proportional to 31,758.91, 43,824.13 and 18,334.50 is: 25,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,758.91 : 43,824.13 = 18,334.50 : x
  2. Step 2: Convert to fraction form
    31,758.91/43,824.13 = 18,334.50/x
  3. Step 3: Cross multiply
    31,758.91x = 43,824.13 × 18,334.50
  4. Step 4: Simplify right side
    31,758.91x = 803,493,511.49
  5. Step 5: Solve for x
    x = 803,493,511.49/31,758.91
  6. Step 6: Final answer
    x = 25,299.78

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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.