Home / 40,039.20-55,252.37-21,889.59

Finding the Fourth Proportional to 40,039.20, 55,252.37 and 21,889.59

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Solution

The fourth proportional to 40,039.20, 55,252.37 and 21,889.59 is: 30,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,039.20 : 55,252.37 = 21,889.59 : x
  2. Step 2: Convert to fraction form
    40,039.20/55,252.37 = 21,889.59/x
  3. Step 3: Cross multiply
    40,039.20x = 55,252.37 × 21,889.59
  4. Step 4: Simplify right side
    40,039.20x = 1,209,451,450.23
  5. Step 5: Solve for x
    x = 1,209,451,450.23/40,039.20
  6. Step 6: Final answer
    x = 30,206.68

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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.