Home / 21,144.46-31,714.26-7,103.92

Finding the Fourth Proportional to 21,144.46, 31,714.26 and 7,103.92

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Solution

The fourth proportional to 21,144.46, 31,714.26 and 7,103.92 is: 10,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.46 : 31,714.26 = 7,103.92 : x
  2. Step 2: Convert to fraction form
    21,144.46/31,714.26 = 7,103.92/x
  3. Step 3: Cross multiply
    21,144.46x = 31,714.26 × 7,103.92
  4. Step 4: Simplify right side
    21,144.46x = 225,295,565.90
  5. Step 5: Solve for x
    x = 225,295,565.90/21,144.46
  6. Step 6: Final answer
    x = 10,655.06

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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.