Home / 21,059.46-31,589.06-8,576.56

Finding the Fourth Proportional to 21,059.46, 31,589.06 and 8,576.56

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Solution

The fourth proportional to 21,059.46, 31,589.06 and 8,576.56 is: 12,864.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,059.46 : 31,589.06 = 8,576.56 : x
  2. Step 2: Convert to fraction form
    21,059.46/31,589.06 = 8,576.56/x
  3. Step 3: Cross multiply
    21,059.46x = 31,589.06 × 8,576.56
  4. Step 4: Simplify right side
    21,059.46x = 270,925,468.43
  5. Step 5: Solve for x
    x = 270,925,468.43/21,059.46
  6. Step 6: Final answer
    x = 12,864.79

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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.