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Finding the Fourth Proportional to 50,371.44, 69,518.88 and 28,857

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Solution

The fourth proportional to 50,371.44, 69,518.88 and 28,857 is: 39,826.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,371.44 : 69,518.88 = 28,857 : x
  2. Step 2: Convert to fraction form
    50,371.44/69,518.88 = 28,857/x
  3. Step 3: Cross multiply
    50,371.44x = 69,518.88 × 28,857
  4. Step 4: Simplify right side
    50,371.44x = 2,006,106,320.16
  5. Step 5: Solve for x
    x = 2,006,106,320.16/50,371.44
  6. Step 6: Final answer
    x = 39,826.27

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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.