Home / 37,286.32-51,455.64-20,519.68

Finding the Fourth Proportional to 37,286.32, 51,455.64 and 20,519.68

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Solution

The fourth proportional to 37,286.32, 51,455.64 and 20,519.68 is: 28,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,286.32 : 51,455.64 = 20,519.68 : x
  2. Step 2: Convert to fraction form
    37,286.32/51,455.64 = 20,519.68/x
  3. Step 3: Cross multiply
    37,286.32x = 51,455.64 × 20,519.68
  4. Step 4: Simplify right side
    37,286.32x = 1,055,853,267.00
  5. Step 5: Solve for x
    x = 1,055,853,267.00/37,286.32
  6. Step 6: Final answer
    x = 28,317.44

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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.