Home / 33,326.08-45,989.12-18,218.30

Finding the Fourth Proportional to 33,326.08, 45,989.12 and 18,218.30

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Solution

The fourth proportional to 33,326.08, 45,989.12 and 18,218.30 is: 25,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,326.08 : 45,989.12 = 18,218.30 : x
  2. Step 2: Convert to fraction form
    33,326.08/45,989.12 = 18,218.30/x
  3. Step 3: Cross multiply
    33,326.08x = 45,989.12 × 18,218.30
  4. Step 4: Simplify right side
    33,326.08x = 837,843,584.90
  5. Step 5: Solve for x
    x = 837,843,584.90/33,326.08
  6. Step 6: Final answer
    x = 25,140.78

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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.