Home / 20,773.76-31,164.96-7,625.60

Finding the Fourth Proportional to 20,773.76, 31,164.96 and 7,625.60

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Solution

The fourth proportional to 20,773.76, 31,164.96 and 7,625.60 is: 11,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.76 : 31,164.96 = 7,625.60 : x
  2. Step 2: Convert to fraction form
    20,773.76/31,164.96 = 7,625.60/x
  3. Step 3: Cross multiply
    20,773.76x = 31,164.96 × 7,625.60
  4. Step 4: Simplify right side
    20,773.76x = 237,651,518.98
  5. Step 5: Solve for x
    x = 237,651,518.98/20,773.76
  6. Step 6: Final answer
    x = 11,439.99

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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.