Home / 20,243.49-27,934.65-11,745.87

Finding the Fourth Proportional to 20,243.49, 27,934.65 and 11,745.87

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Solution

The fourth proportional to 20,243.49, 27,934.65 and 11,745.87 is: 16,208.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.49 : 27,934.65 = 11,745.87 : x
  2. Step 2: Convert to fraction form
    20,243.49/27,934.65 = 11,745.87/x
  3. Step 3: Cross multiply
    20,243.49x = 27,934.65 × 11,745.87
  4. Step 4: Simplify right side
    20,243.49x = 328,116,767.40
  5. Step 5: Solve for x
    x = 328,116,767.40/20,243.49
  6. Step 6: Final answer
    x = 16,208.51

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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.