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Finding the Fourth Proportional to 36,580, 50,482.56 and 20,664.04

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Solution

The fourth proportional to 36,580, 50,482.56 and 20,664.04 is: 28,517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,580 : 50,482.56 = 20,664.04 : x
  2. Step 2: Convert to fraction form
    36,580/50,482.56 = 20,664.04/x
  3. Step 3: Cross multiply
    36,580x = 50,482.56 × 20,664.04
  4. Step 4: Simplify right side
    36,580x = 1,043,173,639.14
  5. Step 5: Solve for x
    x = 1,043,173,639.14/36,580
  6. Step 6: Final answer
    x = 28,517.60

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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.