Home / 20,391.44-30,522.36-11,018.12

Finding the Fourth Proportional to 20,391.44, 30,522.36 and 11,018.12

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Solution

The fourth proportional to 20,391.44, 30,522.36 and 11,018.12 is: 16,492.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391.44 : 30,522.36 = 11,018.12 : x
  2. Step 2: Convert to fraction form
    20,391.44/30,522.36 = 11,018.12/x
  3. Step 3: Cross multiply
    20,391.44x = 30,522.36 × 11,018.12
  4. Step 4: Simplify right side
    20,391.44x = 336,299,025.16
  5. Step 5: Solve for x
    x = 336,299,025.16/20,391.44
  6. Step 6: Final answer
    x = 16,492.17

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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.