Home / 32,785.08-45,228.96-20,217.12

Finding the Fourth Proportional to 32,785.08, 45,228.96 and 20,217.12

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Solution

The fourth proportional to 32,785.08, 45,228.96 and 20,217.12 is: 27,890.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,785.08 : 45,228.96 = 20,217.12 : x
  2. Step 2: Convert to fraction form
    32,785.08/45,228.96 = 20,217.12/x
  3. Step 3: Cross multiply
    32,785.08x = 45,228.96 × 20,217.12
  4. Step 4: Simplify right side
    32,785.08x = 914,399,311.80
  5. Step 5: Solve for x
    x = 914,399,311.80/32,785.08
  6. Step 6: Final answer
    x = 27,890.71

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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.