Home / 20,252.76-30,379.12-7,605.42

Finding the Fourth Proportional to 20,252.76, 30,379.12 and 7,605.42

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Solution

The fourth proportional to 20,252.76, 30,379.12 and 7,605.42 is: 11,408.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.76 : 30,379.12 = 7,605.42 : x
  2. Step 2: Convert to fraction form
    20,252.76/30,379.12 = 7,605.42/x
  3. Step 3: Cross multiply
    20,252.76x = 30,379.12 × 7,605.42
  4. Step 4: Simplify right side
    20,252.76x = 231,045,966.83
  5. Step 5: Solve for x
    x = 231,045,966.83/20,252.76
  6. Step 6: Final answer
    x = 11,408.12

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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.