Home / 39,922.82-59,889.70-13,620.50

Finding the Fourth Proportional to 39,922.82, 59,889.70 and 13,620.50

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Solution

The fourth proportional to 39,922.82, 59,889.70 and 13,620.50 is: 20,432.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,922.82 : 59,889.70 = 13,620.50 : x
  2. Step 2: Convert to fraction form
    39,922.82/59,889.70 = 13,620.50/x
  3. Step 3: Cross multiply
    39,922.82x = 59,889.70 × 13,620.50
  4. Step 4: Simplify right side
    39,922.82x = 815,727,624.80
  5. Step 5: Solve for x
    x = 815,727,624.80/39,922.82
  6. Step 6: Final answer
    x = 20,432.62

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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.