Home / 37,122.72-51,228-20,355.36

Finding the Fourth Proportional to 37,122.72, 51,228 and 20,355.36

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Solution

The fourth proportional to 37,122.72, 51,228 and 20,355.36 is: 28,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,122.72 : 51,228 = 20,355.36 : x
  2. Step 2: Convert to fraction form
    37,122.72/51,228 = 20,355.36/x
  3. Step 3: Cross multiply
    37,122.72x = 51,228 × 20,355.36
  4. Step 4: Simplify right side
    37,122.72x = 1,042,764,382.08
  5. Step 5: Solve for x
    x = 1,042,764,382.08/37,122.72
  6. Step 6: Final answer
    x = 28,089.65

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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.