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Finding the Fourth Proportional to 36,378.69, 50,201.84 and 21,280.29

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Solution

The fourth proportional to 36,378.69, 50,201.84 and 21,280.29 is: 29,366.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,378.69 : 50,201.84 = 21,280.29 : x
  2. Step 2: Convert to fraction form
    36,378.69/50,201.84 = 21,280.29/x
  3. Step 3: Cross multiply
    36,378.69x = 50,201.84 × 21,280.29
  4. Step 4: Simplify right side
    36,378.69x = 1,068,309,515.93
  5. Step 5: Solve for x
    x = 1,068,309,515.93/36,378.69
  6. Step 6: Final answer
    x = 29,366.36

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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.