Home / 33,187.54-45,795.38-20,438.68

Finding the Fourth Proportional to 33,187.54, 45,795.38 and 20,438.68

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Solution

The fourth proportional to 33,187.54, 45,795.38 and 20,438.68 is: 28,203.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,187.54 : 45,795.38 = 20,438.68 : x
  2. Step 2: Convert to fraction form
    33,187.54/45,795.38 = 20,438.68/x
  3. Step 3: Cross multiply
    33,187.54x = 45,795.38 × 20,438.68
  4. Step 4: Simplify right side
    33,187.54x = 935,996,786.13
  5. Step 5: Solve for x
    x = 935,996,786.13/33,187.54
  6. Step 6: Final answer
    x = 28,203.26

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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.