Home / 20,234.88-30,331.53-7,751.52

Finding the Fourth Proportional to 20,234.88, 30,331.53 and 7,751.52

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Solution

The fourth proportional to 20,234.88, 30,331.53 and 7,751.52 is: 11,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,234.88 : 30,331.53 = 7,751.52 : x
  2. Step 2: Convert to fraction form
    20,234.88/30,331.53 = 7,751.52/x
  3. Step 3: Cross multiply
    20,234.88x = 30,331.53 × 7,751.52
  4. Step 4: Simplify right side
    20,234.88x = 235,115,461.43
  5. Step 5: Solve for x
    x = 235,115,461.43/20,234.88
  6. Step 6: Final answer
    x = 11,619.32

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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.