Home / 40,185.24-55,455-22,279.80

Finding the Fourth Proportional to 40,185.24, 55,455 and 22,279.80

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Solution

The fourth proportional to 40,185.24, 55,455 and 22,279.80 is: 30,745.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,185.24 : 55,455 = 22,279.80 : x
  2. Step 2: Convert to fraction form
    40,185.24/55,455 = 22,279.80/x
  3. Step 3: Cross multiply
    40,185.24x = 55,455 × 22,279.80
  4. Step 4: Simplify right side
    40,185.24x = 1,235,526,309
  5. Step 5: Solve for x
    x = 1,235,526,309/40,185.24
  6. Step 6: Final answer
    x = 30,745.77

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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.