Home / 20,180.33-27,846.34-11,227.20

Finding the Fourth Proportional to 20,180.33, 27,846.34 and 11,227.20

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Solution

The fourth proportional to 20,180.33, 27,846.34 and 11,227.20 is: 15,492.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180.33 : 27,846.34 = 11,227.20 : x
  2. Step 2: Convert to fraction form
    20,180.33/27,846.34 = 11,227.20/x
  3. Step 3: Cross multiply
    20,180.33x = 27,846.34 × 11,227.20
  4. Step 4: Simplify right side
    20,180.33x = 312,636,428.45
  5. Step 5: Solve for x
    x = 312,636,428.45/20,180.33
  6. Step 6: Final answer
    x = 15,492.14

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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.