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Finding the Fourth Proportional to 36,520.71, 50,398.50 and 20,605.12

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Solution

The fourth proportional to 36,520.71, 50,398.50 and 20,605.12 is: 28,435.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,520.71 : 50,398.50 = 20,605.12 : x
  2. Step 2: Convert to fraction form
    36,520.71/50,398.50 = 20,605.12/x
  3. Step 3: Cross multiply
    36,520.71x = 50,398.50 × 20,605.12
  4. Step 4: Simplify right side
    36,520.71x = 1,038,467,091.59
  5. Step 5: Solve for x
    x = 1,038,467,091.59/36,520.71
  6. Step 6: Final answer
    x = 28,435.02

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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.