Home / 20,683.41-31,025.72-7,545.61

Finding the Fourth Proportional to 20,683.41, 31,025.72 and 7,545.61

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Solution

The fourth proportional to 20,683.41, 31,025.72 and 7,545.61 is: 11,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.41 : 31,025.72 = 7,545.61 : x
  2. Step 2: Convert to fraction form
    20,683.41/31,025.72 = 7,545.61/x
  3. Step 3: Cross multiply
    20,683.41x = 31,025.72 × 7,545.61
  4. Step 4: Simplify right side
    20,683.41x = 234,107,983.09
  5. Step 5: Solve for x
    x = 234,107,983.09/20,683.41
  6. Step 6: Final answer
    x = 11,318.64

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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.