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Finding the Fourth Proportional to 36,700.80, 55,051.20 and 13,324.20

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Solution

The fourth proportional to 36,700.80, 55,051.20 and 13,324.20 is: 19,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,700.80 : 55,051.20 = 13,324.20 : x
  2. Step 2: Convert to fraction form
    36,700.80/55,051.20 = 13,324.20/x
  3. Step 3: Cross multiply
    36,700.80x = 55,051.20 × 13,324.20
  4. Step 4: Simplify right side
    36,700.80x = 733,513,199.04
  5. Step 5: Solve for x
    x = 733,513,199.04/36,700.80
  6. Step 6: Final answer
    x = 19,986.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.