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Finding the Fourth Proportional to 17,997.70, 27,008.70 and 10,100.20

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Solution

The fourth proportional to 17,997.70, 27,008.70 and 10,100.20 is: 15,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,997.70 : 27,008.70 = 10,100.20 : x
  2. Step 2: Convert to fraction form
    17,997.70/27,008.70 = 10,100.20/x
  3. Step 3: Cross multiply
    17,997.70x = 27,008.70 × 10,100.20
  4. Step 4: Simplify right side
    17,997.70x = 272,793,271.74
  5. Step 5: Solve for x
    x = 272,793,271.74/17,997.70
  6. Step 6: Final answer
    x = 15,157.12

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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.