Home / 20,057.49-27,677.16-11,103.57

Finding the Fourth Proportional to 20,057.49, 27,677.16 and 11,103.57

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Solution

The fourth proportional to 20,057.49, 27,677.16 and 11,103.57 is: 15,321.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.49 : 27,677.16 = 11,103.57 : x
  2. Step 2: Convert to fraction form
    20,057.49/27,677.16 = 11,103.57/x
  3. Step 3: Cross multiply
    20,057.49x = 27,677.16 × 11,103.57
  4. Step 4: Simplify right side
    20,057.49x = 307,315,283.46
  5. Step 5: Solve for x
    x = 307,315,283.46/20,057.49
  6. Step 6: Final answer
    x = 15,321.72

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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.