Home / 31,234.36-43,124.22-18,491.68

Finding the Fourth Proportional to 31,234.36, 43,124.22 and 18,491.68

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Solution

The fourth proportional to 31,234.36, 43,124.22 and 18,491.68 is: 25,530.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,234.36 : 43,124.22 = 18,491.68 : x
  2. Step 2: Convert to fraction form
    31,234.36/43,124.22 = 18,491.68/x
  3. Step 3: Cross multiply
    31,234.36x = 43,124.22 × 18,491.68
  4. Step 4: Simplify right side
    31,234.36x = 797,439,276.49
  5. Step 5: Solve for x
    x = 797,439,276.49/31,234.36
  6. Step 6: Final answer
    x = 25,530.83

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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.