Home / 33,135.75-45,727.34-18,231.75

Finding the Fourth Proportional to 33,135.75, 45,727.34 and 18,231.75

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Solution

The fourth proportional to 33,135.75, 45,727.34 and 18,231.75 is: 25,159.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,135.75 : 45,727.34 = 18,231.75 : x
  2. Step 2: Convert to fraction form
    33,135.75/45,727.34 = 18,231.75/x
  3. Step 3: Cross multiply
    33,135.75x = 45,727.34 × 18,231.75
  4. Step 4: Simplify right side
    33,135.75x = 833,689,339.89
  5. Step 5: Solve for x
    x = 833,689,339.89/33,135.75
  6. Step 6: Final answer
    x = 25,159.82

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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.