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Finding the Fourth Proportional to 20,004.49, 30,008.49 and 10,137.43

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Solution

The fourth proportional to 20,004.49, 30,008.49 and 10,137.43 is: 15,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,004.49 : 30,008.49 = 10,137.43 : x
  2. Step 2: Convert to fraction form
    20,004.49/30,008.49 = 10,137.43/x
  3. Step 3: Cross multiply
    20,004.49x = 30,008.49 × 10,137.43
  4. Step 4: Simplify right side
    20,004.49x = 304,208,966.78
  5. Step 5: Solve for x
    x = 304,208,966.78/20,004.49
  6. Step 6: Final answer
    x = 15,207.03

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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.