Home / 20,723.24-31,098.90-7,576.40

Finding the Fourth Proportional to 20,723.24, 31,098.90 and 7,576.40

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Solution

The fourth proportional to 20,723.24, 31,098.90 and 7,576.40 is: 11,369.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.24 : 31,098.90 = 7,576.40 : x
  2. Step 2: Convert to fraction form
    20,723.24/31,098.90 = 7,576.40/x
  3. Step 3: Cross multiply
    20,723.24x = 31,098.90 × 7,576.40
  4. Step 4: Simplify right side
    20,723.24x = 235,617,705.96
  5. Step 5: Solve for x
    x = 235,617,705.96/20,723.24
  6. Step 6: Final answer
    x = 11,369.73

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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.