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Finding the Fourth Proportional to 36,288, 50,073.60 and 20,374.24

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Solution

The fourth proportional to 36,288, 50,073.60 and 20,374.24 is: 28,114.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,288 : 50,073.60 = 20,374.24 : x
  2. Step 2: Convert to fraction form
    36,288/50,073.60 = 20,374.24/x
  3. Step 3: Cross multiply
    36,288x = 50,073.60 × 20,374.24
  4. Step 4: Simplify right side
    36,288x = 1,020,211,544.06
  5. Step 5: Solve for x
    x = 1,020,211,544.06/36,288
  6. Step 6: Final answer
    x = 28,114.30

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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.