Home / 37,040.49-51,115.96-20,911.30

Finding the Fourth Proportional to 37,040.49, 51,115.96 and 20,911.30

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Solution

The fourth proportional to 37,040.49, 51,115.96 and 20,911.30 is: 28,857.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,040.49 : 51,115.96 = 20,911.30 : x
  2. Step 2: Convert to fraction form
    37,040.49/51,115.96 = 20,911.30/x
  3. Step 3: Cross multiply
    37,040.49x = 51,115.96 × 20,911.30
  4. Step 4: Simplify right side
    37,040.49x = 1,068,901,072.70
  5. Step 5: Solve for x
    x = 1,068,901,072.70/37,040.49
  6. Step 6: Final answer
    x = 28,857.64

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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.