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Finding the Fourth Proportional to 20,008.14, 30,008.97 and 11,260.14

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Solution

The fourth proportional to 20,008.14, 30,008.97 and 11,260.14 is: 16,888.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,008.14 : 30,008.97 = 11,260.14 : x
  2. Step 2: Convert to fraction form
    20,008.14/30,008.97 = 11,260.14/x
  3. Step 3: Cross multiply
    20,008.14x = 30,008.97 × 11,260.14
  4. Step 4: Simplify right side
    20,008.14x = 337,905,203.46
  5. Step 5: Solve for x
    x = 337,905,203.46/20,008.14
  6. Step 6: Final answer
    x = 16,888.39

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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.