Home / 20,772.24-31,157.32-7,623.57

Finding the Fourth Proportional to 20,772.24, 31,157.32 and 7,623.57

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Solution

The fourth proportional to 20,772.24, 31,157.32 and 7,623.57 is: 11,434.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,772.24 : 31,157.32 = 7,623.57 : x
  2. Step 2: Convert to fraction form
    20,772.24/31,157.32 = 7,623.57/x
  3. Step 3: Cross multiply
    20,772.24x = 31,157.32 × 7,623.57
  4. Step 4: Simplify right side
    20,772.24x = 237,530,010.03
  5. Step 5: Solve for x
    x = 237,530,010.03/20,772.24
  6. Step 6: Final answer
    x = 11,434.97

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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.