Home / 40,026.28-55,236.86-22,121.70

Finding the Fourth Proportional to 40,026.28, 55,236.86 and 22,121.70

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Solution

The fourth proportional to 40,026.28, 55,236.86 and 22,121.70 is: 30,528.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,026.28 : 55,236.86 = 22,121.70 : x
  2. Step 2: Convert to fraction form
    40,026.28/55,236.86 = 22,121.70/x
  3. Step 3: Cross multiply
    40,026.28x = 55,236.86 × 22,121.70
  4. Step 4: Simplify right side
    40,026.28x = 1,221,933,245.86
  5. Step 5: Solve for x
    x = 1,221,933,245.86/40,026.28
  6. Step 6: Final answer
    x = 30,528.27

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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.