Home / 37,086.08-51,179.52-20,320.64

Finding the Fourth Proportional to 37,086.08, 51,179.52 and 20,320.64

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Solution

The fourth proportional to 37,086.08, 51,179.52 and 20,320.64 is: 28,042.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,086.08 : 51,179.52 = 20,320.64 : x
  2. Step 2: Convert to fraction form
    37,086.08/51,179.52 = 20,320.64/x
  3. Step 3: Cross multiply
    37,086.08x = 51,179.52 × 20,320.64
  4. Step 4: Simplify right side
    37,086.08x = 1,040,000,601.29
  5. Step 5: Solve for x
    x = 1,040,000,601.29/37,086.08
  6. Step 6: Final answer
    x = 28,042.88

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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.