Home / 36,821.28-55,245.12-18,099.36

Finding the Fourth Proportional to 36,821.28, 55,245.12 and 18,099.36

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Solution

The fourth proportional to 36,821.28, 55,245.12 and 18,099.36 is: 27,155.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,821.28 : 55,245.12 = 18,099.36 : x
  2. Step 2: Convert to fraction form
    36,821.28/55,245.12 = 18,099.36/x
  3. Step 3: Cross multiply
    36,821.28x = 55,245.12 × 18,099.36
  4. Step 4: Simplify right side
    36,821.28x = 999,901,315.12
  5. Step 5: Solve for x
    x = 999,901,315.12/36,821.28
  6. Step 6: Final answer
    x = 27,155.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.