Home / 21,089.46-31,633.11-6,297.78

Finding the Fourth Proportional to 21,089.46, 31,633.11 and 6,297.78

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Solution

The fourth proportional to 21,089.46, 31,633.11 and 6,297.78 is: 9,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.46 : 31,633.11 = 6,297.78 : x
  2. Step 2: Convert to fraction form
    21,089.46/31,633.11 = 6,297.78/x
  3. Step 3: Cross multiply
    21,089.46x = 31,633.11 × 6,297.78
  4. Step 4: Simplify right side
    21,089.46x = 199,218,367.50
  5. Step 5: Solve for x
    x = 199,218,367.50/21,089.46
  6. Step 6: Final answer
    x = 9,446.35

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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.