Home / 20,204.67-27,880.56-11,707.12

Finding the Fourth Proportional to 20,204.67, 27,880.56 and 11,707.12

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Solution

The fourth proportional to 20,204.67, 27,880.56 and 11,707.12 is: 16,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,204.67 : 27,880.56 = 11,707.12 : x
  2. Step 2: Convert to fraction form
    20,204.67/27,880.56 = 11,707.12/x
  3. Step 3: Cross multiply
    20,204.67x = 27,880.56 × 11,707.12
  4. Step 4: Simplify right side
    20,204.67x = 326,401,096.44
  5. Step 5: Solve for x
    x = 326,401,096.44/20,204.67
  6. Step 6: Final answer
    x = 16,154.73

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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.