Home / 40,121.85-55,368.14-22,216.85

Finding the Fourth Proportional to 40,121.85, 55,368.14 and 22,216.85

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Solution

The fourth proportional to 40,121.85, 55,368.14 and 22,216.85 is: 30,659.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,121.85 : 55,368.14 = 22,216.85 : x
  2. Step 2: Convert to fraction form
    40,121.85/55,368.14 = 22,216.85/x
  3. Step 3: Cross multiply
    40,121.85x = 55,368.14 × 22,216.85
  4. Step 4: Simplify right side
    40,121.85x = 1,230,105,605.83
  5. Step 5: Solve for x
    x = 1,230,105,605.83/40,121.85
  6. Step 6: Final answer
    x = 30,659.25

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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.