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Finding the Fourth Proportional to 20,001.07, 29,978.52 and 7,513.11

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Solution

The fourth proportional to 20,001.07, 29,978.52 and 7,513.11 is: 11,260.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.07 : 29,978.52 = 7,513.11 : x
  2. Step 2: Convert to fraction form
    20,001.07/29,978.52 = 7,513.11/x
  3. Step 3: Cross multiply
    20,001.07x = 29,978.52 × 7,513.11
  4. Step 4: Simplify right side
    20,001.07x = 225,231,918.40
  5. Step 5: Solve for x
    x = 225,231,918.40/20,001.07
  6. Step 6: Final answer
    x = 11,260.99

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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.