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Finding the Fourth Proportional to 36,490.52, 50,353.90 and 20,578.88

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Solution

The fourth proportional to 36,490.52, 50,353.90 and 20,578.88 is: 28,397.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,490.52 : 50,353.90 = 20,578.88 : x
  2. Step 2: Convert to fraction form
    36,490.52/50,353.90 = 20,578.88/x
  3. Step 3: Cross multiply
    36,490.52x = 50,353.90 × 20,578.88
  4. Step 4: Simplify right side
    36,490.52x = 1,036,226,865.63
  5. Step 5: Solve for x
    x = 1,036,226,865.63/36,490.52
  6. Step 6: Final answer
    x = 28,397.15

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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.