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Finding the Fourth Proportional to 36,997.70, 51,052.88 and 21,890.99

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Solution

The fourth proportional to 36,997.70, 51,052.88 and 21,890.99 is: 30,207.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,997.70 : 51,052.88 = 21,890.99 : x
  2. Step 2: Convert to fraction form
    36,997.70/51,052.88 = 21,890.99/x
  3. Step 3: Cross multiply
    36,997.70x = 51,052.88 × 21,890.99
  4. Step 4: Simplify right side
    36,997.70x = 1,117,598,267.91
  5. Step 5: Solve for x
    x = 1,117,598,267.91/36,997.70
  6. Step 6: Final answer
    x = 30,207.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.