Home / 40,147.74-55,399.38-22,238.30

Finding the Fourth Proportional to 40,147.74, 55,399.38 and 22,238.30

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Solution

The fourth proportional to 40,147.74, 55,399.38 and 22,238.30 is: 30,686.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,147.74 : 55,399.38 = 22,238.30 : x
  2. Step 2: Convert to fraction form
    40,147.74/55,399.38 = 22,238.30/x
  3. Step 3: Cross multiply
    40,147.74x = 55,399.38 × 22,238.30
  4. Step 4: Simplify right side
    40,147.74x = 1,231,987,755.26
  5. Step 5: Solve for x
    x = 1,231,987,755.26/40,147.74
  6. Step 6: Final answer
    x = 30,686.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.