Home / 23,471.12-32,379.32-20,785.09

Finding the Fourth Proportional to 23,471.12, 32,379.32 and 20,785.09

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Solution

The fourth proportional to 23,471.12, 32,379.32 and 20,785.09 is: 28,673.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,471.12 : 32,379.32 = 20,785.09 : x
  2. Step 2: Convert to fraction form
    23,471.12/32,379.32 = 20,785.09/x
  3. Step 3: Cross multiply
    23,471.12x = 32,379.32 × 20,785.09
  4. Step 4: Simplify right side
    23,471.12x = 673,006,895.47
  5. Step 5: Solve for x
    x = 673,006,895.47/23,471.12
  6. Step 6: Final answer
    x = 28,673.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.