Home / 20,231.11-30,356.30-9,141.19

Finding the Fourth Proportional to 20,231.11, 30,356.30 and 9,141.19

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Solution

The fourth proportional to 20,231.11, 30,356.30 and 9,141.19 is: 13,716.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.11 : 30,356.30 = 9,141.19 : x
  2. Step 2: Convert to fraction form
    20,231.11/30,356.30 = 9,141.19/x
  3. Step 3: Cross multiply
    20,231.11x = 30,356.30 × 9,141.19
  4. Step 4: Simplify right side
    20,231.11x = 277,492,660.29
  5. Step 5: Solve for x
    x = 277,492,660.29/20,231.11
  6. Step 6: Final answer
    x = 13,716.14

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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.