Home / 19,418.35-29,107.30-13,178.86

Finding the Fourth Proportional to 19,418.35, 29,107.30 and 13,178.86

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Solution

The fourth proportional to 19,418.35, 29,107.30 and 13,178.86 is: 19,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,418.35 : 29,107.30 = 13,178.86 : x
  2. Step 2: Convert to fraction form
    19,418.35/29,107.30 = 13,178.86/x
  3. Step 3: Cross multiply
    19,418.35x = 29,107.30 × 13,178.86
  4. Step 4: Simplify right side
    19,418.35x = 383,601,031.68
  5. Step 5: Solve for x
    x = 383,601,031.68/19,418.35
  6. Step 6: Final answer
    x = 19,754.56

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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.