Home / 34,387.80-51,581.70-13,611.30

Finding the Fourth Proportional to 34,387.80, 51,581.70 and 13,611.30

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Solution

The fourth proportional to 34,387.80, 51,581.70 and 13,611.30 is: 20,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,387.80 : 51,581.70 = 13,611.30 : x
  2. Step 2: Convert to fraction form
    34,387.80/51,581.70 = 13,611.30/x
  3. Step 3: Cross multiply
    34,387.80x = 51,581.70 × 13,611.30
  4. Step 4: Simplify right side
    34,387.80x = 702,093,993.21
  5. Step 5: Solve for x
    x = 702,093,993.21/34,387.80
  6. Step 6: Final answer
    x = 20,416.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.