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Finding the Fourth Proportional to 36,613.04, 50,509 and 21,500.80

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Solution

The fourth proportional to 36,613.04, 50,509 and 21,500.80 is: 29,661.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,613.04 : 50,509 = 21,500.80 : x
  2. Step 2: Convert to fraction form
    36,613.04/50,509 = 21,500.80/x
  3. Step 3: Cross multiply
    36,613.04x = 50,509 × 21,500.80
  4. Step 4: Simplify right side
    36,613.04x = 1,085,983,907.20
  5. Step 5: Solve for x
    x = 1,085,983,907.20/36,613.04
  6. Step 6: Final answer
    x = 29,661.12

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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.