Home / 33,326.10-45,990.11-18,218.94

Finding the Fourth Proportional to 33,326.10, 45,990.11 and 18,218.94

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Solution

The fourth proportional to 33,326.10, 45,990.11 and 18,218.94 is: 25,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,326.10 : 45,990.11 = 18,218.94 : x
  2. Step 2: Convert to fraction form
    33,326.10/45,990.11 = 18,218.94/x
  3. Step 3: Cross multiply
    33,326.10x = 45,990.11 × 18,218.94
  4. Step 4: Simplify right side
    33,326.10x = 837,890,963.59
  5. Step 5: Solve for x
    x = 837,890,963.59/33,326.10
  6. Step 6: Final answer
    x = 25,142.18

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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.