Home / 20,519.67-30,774.03-5,725.99

Finding the Fourth Proportional to 20,519.67, 30,774.03 and 5,725.99

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Solution

The fourth proportional to 20,519.67, 30,774.03 and 5,725.99 is: 8,587.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,519.67 : 30,774.03 = 5,725.99 : x
  2. Step 2: Convert to fraction form
    20,519.67/30,774.03 = 5,725.99/x
  3. Step 3: Cross multiply
    20,519.67x = 30,774.03 × 5,725.99
  4. Step 4: Simplify right side
    20,519.67x = 176,211,788.04
  5. Step 5: Solve for x
    x = 176,211,788.04/20,519.67
  6. Step 6: Final answer
    x = 8,587.46

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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.