Home / 33,228.09-45,855.86-18,121.57

Finding the Fourth Proportional to 33,228.09, 45,855.86 and 18,121.57

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Solution

The fourth proportional to 33,228.09, 45,855.86 and 18,121.57 is: 25,008.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,228.09 : 45,855.86 = 18,121.57 : x
  2. Step 2: Convert to fraction form
    33,228.09/45,855.86 = 18,121.57/x
  3. Step 3: Cross multiply
    33,228.09x = 45,855.86 × 18,121.57
  4. Step 4: Simplify right side
    33,228.09x = 830,980,176.90
  5. Step 5: Solve for x
    x = 830,980,176.90/33,228.09
  6. Step 6: Final answer
    x = 25,008.36

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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.