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Finding the Fourth Proportional to 37,636.80, 51,939.88 and 21,722.12

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Solution

The fourth proportional to 37,636.80, 51,939.88 and 21,722.12 is: 29,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,636.80 : 51,939.88 = 21,722.12 : x
  2. Step 2: Convert to fraction form
    37,636.80/51,939.88 = 21,722.12/x
  3. Step 3: Cross multiply
    37,636.80x = 51,939.88 × 21,722.12
  4. Step 4: Simplify right side
    37,636.80x = 1,128,244,306.15
  5. Step 5: Solve for x
    x = 1,128,244,306.15/37,636.80
  6. Step 6: Final answer
    x = 29,977.16

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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.