Home / 20,250.40-27,934.32-11,865.28

Finding the Fourth Proportional to 20,250.40, 27,934.32 and 11,865.28

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Solution

The fourth proportional to 20,250.40, 27,934.32 and 11,865.28 is: 16,367.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.40 : 27,934.32 = 11,865.28 : x
  2. Step 2: Convert to fraction form
    20,250.40/27,934.32 = 11,865.28/x
  3. Step 3: Cross multiply
    20,250.40x = 27,934.32 × 11,865.28
  4. Step 4: Simplify right side
    20,250.40x = 331,448,528.41
  5. Step 5: Solve for x
    x = 331,448,528.41/20,250.40
  6. Step 6: Final answer
    x = 16,367.51

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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.