Home / 33,187.82-45,802.92-20,438.51

Finding the Fourth Proportional to 33,187.82, 45,802.92 and 20,438.51

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Solution

The fourth proportional to 33,187.82, 45,802.92 and 20,438.51 is: 28,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,187.82 : 45,802.92 = 20,438.51 : x
  2. Step 2: Convert to fraction form
    33,187.82/45,802.92 = 20,438.51/x
  3. Step 3: Cross multiply
    33,187.82x = 45,802.92 × 20,438.51
  4. Step 4: Simplify right side
    33,187.82x = 936,143,209.43
  5. Step 5: Solve for x
    x = 936,143,209.43/33,187.82
  6. Step 6: Final answer
    x = 28,207.44

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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.