Home / 19,533.44-29,278.72-12,867.20

Finding the Fourth Proportional to 19,533.44, 29,278.72 and 12,867.20

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Solution

The fourth proportional to 19,533.44, 29,278.72 and 12,867.20 is: 19,286.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,533.44 : 29,278.72 = 12,867.20 : x
  2. Step 2: Convert to fraction form
    19,533.44/29,278.72 = 12,867.20/x
  3. Step 3: Cross multiply
    19,533.44x = 29,278.72 × 12,867.20
  4. Step 4: Simplify right side
    19,533.44x = 376,735,145.98
  5. Step 5: Solve for x
    x = 376,735,145.98/19,533.44
  6. Step 6: Final answer
    x = 19,286.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.