Home / 36,996.88-51,053.06-21,078.40

Finding the Fourth Proportional to 36,996.88, 51,053.06 and 21,078.40

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Solution

The fourth proportional to 36,996.88, 51,053.06 and 21,078.40 is: 29,086.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,996.88 : 51,053.06 = 21,078.40 : x
  2. Step 2: Convert to fraction form
    36,996.88/51,053.06 = 21,078.40/x
  3. Step 3: Cross multiply
    36,996.88x = 51,053.06 × 21,078.40
  4. Step 4: Simplify right side
    36,996.88x = 1,076,116,819.90
  5. Step 5: Solve for x
    x = 1,076,116,819.90/36,996.88
  6. Step 6: Final answer
    x = 29,086.69

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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.