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Finding the Fourth Proportional to 36,787, 50,762.55 and 20,650.62

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Solution

The fourth proportional to 36,787, 50,762.55 and 20,650.62 is: 28,495.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,787 : 50,762.55 = 20,650.62 : x
  2. Step 2: Convert to fraction form
    36,787/50,762.55 = 20,650.62/x
  3. Step 3: Cross multiply
    36,787x = 50,762.55 × 20,650.62
  4. Step 4: Simplify right side
    36,787x = 1,048,278,130.28
  5. Step 5: Solve for x
    x = 1,048,278,130.28/36,787
  6. Step 6: Final answer
    x = 28,495.89

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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.