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Finding the Fourth Proportional to 20,051.81, 30,067.34 and 8,802.54

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Solution

The fourth proportional to 20,051.81, 30,067.34 and 8,802.54 is: 13,199.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.81 : 30,067.34 = 8,802.54 : x
  2. Step 2: Convert to fraction form
    20,051.81/30,067.34 = 8,802.54/x
  3. Step 3: Cross multiply
    20,051.81x = 30,067.34 × 8,802.54
  4. Step 4: Simplify right side
    20,051.81x = 264,668,919.03
  5. Step 5: Solve for x
    x = 264,668,919.03/20,051.81
  6. Step 6: Final answer
    x = 13,199.26

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1.5x scale

Why These Related Problems?

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