Home / 37,155.08-51,272.26-20,387.72

Finding the Fourth Proportional to 37,155.08, 51,272.26 and 20,387.72

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Solution

The fourth proportional to 37,155.08, 51,272.26 and 20,387.72 is: 28,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,155.08 : 51,272.26 = 20,387.72 : x
  2. Step 2: Convert to fraction form
    37,155.08/51,272.26 = 20,387.72/x
  3. Step 3: Cross multiply
    37,155.08x = 51,272.26 × 20,387.72
  4. Step 4: Simplify right side
    37,155.08x = 1,045,324,480.65
  5. Step 5: Solve for x
    x = 1,045,324,480.65/37,155.08
  6. Step 6: Final answer
    x = 28,134.09

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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.