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Finding the Fourth Proportional to 36,420.44, 50,262 and 20,506.64

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Solution

The fourth proportional to 36,420.44, 50,262 and 20,506.64 is: 28,300.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,420.44 : 50,262 = 20,506.64 : x
  2. Step 2: Convert to fraction form
    36,420.44/50,262 = 20,506.64/x
  3. Step 3: Cross multiply
    36,420.44x = 50,262 × 20,506.64
  4. Step 4: Simplify right side
    36,420.44x = 1,030,704,739.68
  5. Step 5: Solve for x
    x = 1,030,704,739.68/36,420.44
  6. Step 6: Final answer
    x = 28,300.17

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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.