Home / 40,022.19-55,231.73-22,118.32

Finding the Fourth Proportional to 40,022.19, 55,231.73 and 22,118.32

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Solution

The fourth proportional to 40,022.19, 55,231.73 and 22,118.32 is: 30,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,022.19 : 55,231.73 = 22,118.32 : x
  2. Step 2: Convert to fraction form
    40,022.19/55,231.73 = 22,118.32/x
  3. Step 3: Cross multiply
    40,022.19x = 55,231.73 × 22,118.32
  4. Step 4: Simplify right side
    40,022.19x = 1,221,633,078.29
  5. Step 5: Solve for x
    x = 1,221,633,078.29/40,022.19
  6. Step 6: Final answer
    x = 30,523.89

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Half scale
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Double scale
Find fourth proportional to 40,023.19, 55,233.11 and 22,119.32
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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.