Home / 40,021.23-55,229.32-22,116.23

Finding the Fourth Proportional to 40,021.23, 55,229.32 and 22,116.23

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Solution

The fourth proportional to 40,021.23, 55,229.32 and 22,116.23 is: 30,520.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,021.23 : 55,229.32 = 22,116.23 : x
  2. Step 2: Convert to fraction form
    40,021.23/55,229.32 = 22,116.23/x
  3. Step 3: Cross multiply
    40,021.23x = 55,229.32 × 22,116.23
  4. Step 4: Simplify right side
    40,021.23x = 1,221,464,343.86
  5. Step 5: Solve for x
    x = 1,221,464,343.86/40,021.23
  6. Step 6: Final answer
    x = 30,520.41

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Half scale
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Double scale
Find fourth proportional to 40,022.23, 55,230.70 and 22,117.23
Similar ratio
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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.