Home / 37,286.31-51,455.21-20,519.31

Finding the Fourth Proportional to 37,286.31, 51,455.21 and 20,519.31

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Solution

The fourth proportional to 37,286.31, 51,455.21 and 20,519.31 is: 28,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,286.31 : 51,455.21 = 20,519.31 : x
  2. Step 2: Convert to fraction form
    37,286.31/51,455.21 = 20,519.31/x
  3. Step 3: Cross multiply
    37,286.31x = 51,455.21 × 20,519.31
  4. Step 4: Simplify right side
    37,286.31x = 1,055,825,405.11
  5. Step 5: Solve for x
    x = 1,055,825,405.11/37,286.31
  6. Step 6: Final answer
    x = 28,316.70

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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.