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Finding the Fourth Proportional to 20,001.30, 29,980.38 and 10,141.38

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Solution

The fourth proportional to 20,001.30, 29,980.38 and 10,141.38 is: 15,201.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.30 : 29,980.38 = 10,141.38 : x
  2. Step 2: Convert to fraction form
    20,001.30/29,980.38 = 10,141.38/x
  3. Step 3: Cross multiply
    20,001.30x = 29,980.38 × 10,141.38
  4. Step 4: Simplify right side
    20,001.30x = 304,042,426.12
  5. Step 5: Solve for x
    x = 304,042,426.12/20,001.30
  6. Step 6: Final answer
    x = 15,201.13

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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.