Home / 20,234.88-30,348.16-7,750.72

Finding the Fourth Proportional to 20,234.88, 30,348.16 and 7,750.72

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Solution

The fourth proportional to 20,234.88, 30,348.16 and 7,750.72 is: 11,624.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.88 : 30,348.16 = 7,750.72 : x
  2. Step 2: Convert to fraction form
    20,234.88/30,348.16 = 7,750.72/x
  3. Step 3: Cross multiply
    20,234.88x = 30,348.16 × 7,750.72
  4. Step 4: Simplify right side
    20,234.88x = 235,220,090.68
  5. Step 5: Solve for x
    x = 235,220,090.68/20,234.88
  6. Step 6: Final answer
    x = 11,624.49

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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.