Home / 33,040.80-45,582.48-20,456.64

Finding the Fourth Proportional to 33,040.80, 45,582.48 and 20,456.64

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Solution

The fourth proportional to 33,040.80, 45,582.48 and 20,456.64 is: 28,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,040.80 : 45,582.48 = 20,456.64 : x
  2. Step 2: Convert to fraction form
    33,040.80/45,582.48 = 20,456.64/x
  3. Step 3: Cross multiply
    33,040.80x = 45,582.48 × 20,456.64
  4. Step 4: Simplify right side
    33,040.80x = 932,464,383.67
  5. Step 5: Solve for x
    x = 932,464,383.67/33,040.80
  6. Step 6: Final answer
    x = 28,221.60

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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.