Home / 31,328.88-43,234.30-17,180.80

Finding the Fourth Proportional to 31,328.88, 43,234.30 and 17,180.80

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Solution

The fourth proportional to 31,328.88, 43,234.30 and 17,180.80 is: 23,709.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,328.88 : 43,234.30 = 17,180.80 : x
  2. Step 2: Convert to fraction form
    31,328.88/43,234.30 = 17,180.80/x
  3. Step 3: Cross multiply
    31,328.88x = 43,234.30 × 17,180.80
  4. Step 4: Simplify right side
    31,328.88x = 742,799,861.44
  5. Step 5: Solve for x
    x = 742,799,861.44/31,328.88
  6. Step 6: Final answer
    x = 23,709.75

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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.