Home / 36,743.72-55,147.57-20,980.31

Finding the Fourth Proportional to 36,743.72, 55,147.57 and 20,980.31

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Solution

The fourth proportional to 36,743.72, 55,147.57 and 20,980.31 is: 31,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,743.72 : 55,147.57 = 20,980.31 : x
  2. Step 2: Convert to fraction form
    36,743.72/55,147.57 = 20,980.31/x
  3. Step 3: Cross multiply
    36,743.72x = 55,147.57 × 20,980.31
  4. Step 4: Simplify right side
    36,743.72x = 1,157,012,786.16
  5. Step 5: Solve for x
    x = 1,157,012,786.16/36,743.72
  6. Step 6: Final answer
    x = 31,488.73

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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.