Home / 33,115.80-45,662.73-31,016.28

Finding the Fourth Proportional to 33,115.80, 45,662.73 and 31,016.28

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Solution

The fourth proportional to 33,115.80, 45,662.73 and 31,016.28 is: 42,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,115.80 : 45,662.73 = 31,016.28 : x
  2. Step 2: Convert to fraction form
    33,115.80/45,662.73 = 31,016.28/x
  3. Step 3: Cross multiply
    33,115.80x = 45,662.73 × 31,016.28
  4. Step 4: Simplify right side
    33,115.80x = 1,416,288,019.24
  5. Step 5: Solve for x
    x = 1,416,288,019.24/33,115.80
  6. Step 6: Final answer
    x = 42,767.74

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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.