Home / 28,219.46-38,942.79-16,119.68

Finding the Fourth Proportional to 28,219.46, 38,942.79 and 16,119.68

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Solution

The fourth proportional to 28,219.46, 38,942.79 and 16,119.68 is: 22,245.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.46 : 38,942.79 = 16,119.68 : x
  2. Step 2: Convert to fraction form
    28,219.46/38,942.79 = 16,119.68/x
  3. Step 3: Cross multiply
    28,219.46x = 38,942.79 × 16,119.68
  4. Step 4: Simplify right side
    28,219.46x = 627,745,313.11
  5. Step 5: Solve for x
    x = 627,745,313.11/28,219.46
  6. Step 6: Final answer
    x = 22,245.12

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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.