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Finding the Fourth Proportional to 36,996.70, 51,053.94 and 21,079.80

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Solution

The fourth proportional to 36,996.70, 51,053.94 and 21,079.80 is: 29,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,996.70 : 51,053.94 = 21,079.80 : x
  2. Step 2: Convert to fraction form
    36,996.70/51,053.94 = 21,079.80/x
  3. Step 3: Cross multiply
    36,996.70x = 51,053.94 × 21,079.80
  4. Step 4: Simplify right side
    36,996.70x = 1,076,206,844.41
  5. Step 5: Solve for x
    x = 1,076,206,844.41/36,996.70
  6. Step 6: Final answer
    x = 29,089.27

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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.