Home / 32,785.12-45,247.31-18,640.09

Finding the Fourth Proportional to 32,785.12, 45,247.31 and 18,640.09

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Solution

The fourth proportional to 32,785.12, 45,247.31 and 18,640.09 is: 25,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,785.12 : 45,247.31 = 18,640.09 : x
  2. Step 2: Convert to fraction form
    32,785.12/45,247.31 = 18,640.09/x
  3. Step 3: Cross multiply
    32,785.12x = 45,247.31 × 18,640.09
  4. Step 4: Simplify right side
    32,785.12x = 843,413,930.66
  5. Step 5: Solve for x
    x = 843,413,930.66/32,785.12
  6. Step 6: Final answer
    x = 25,725.51

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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.