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Finding the Fourth Proportional to 20,006.51, 30,001.46 and 7,520.09

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Solution

The fourth proportional to 20,006.51, 30,001.46 and 7,520.09 is: 11,277.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,006.51 : 30,001.46 = 7,520.09 : x
  2. Step 2: Convert to fraction form
    20,006.51/30,001.46 = 7,520.09/x
  3. Step 3: Cross multiply
    20,006.51x = 30,001.46 × 7,520.09
  4. Step 4: Simplify right side
    20,006.51x = 225,613,491.72
  5. Step 5: Solve for x
    x = 225,613,491.72/20,006.51
  6. Step 6: Final answer
    x = 11,277.01

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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.