Home / 20,228.60-30,347.26-7,748.62

Finding the Fourth Proportional to 20,228.60, 30,347.26 and 7,748.62

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Solution

The fourth proportional to 20,228.60, 30,347.26 and 7,748.62 is: 11,624.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.60 : 30,347.26 = 7,748.62 : x
  2. Step 2: Convert to fraction form
    20,228.60/30,347.26 = 7,748.62/x
  3. Step 3: Cross multiply
    20,228.60x = 30,347.26 × 7,748.62
  4. Step 4: Simplify right side
    20,228.60x = 235,149,290.54
  5. Step 5: Solve for x
    x = 235,149,290.54/20,228.60
  6. Step 6: Final answer
    x = 11,624.59

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1.5x scale

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.