Home / 38,418.13-57,635.03-21,785.59

Finding the Fourth Proportional to 38,418.13, 57,635.03 and 21,785.59

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Solution

The fourth proportional to 38,418.13, 57,635.03 and 21,785.59 is: 32,682.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418.13 : 57,635.03 = 21,785.59 : x
  2. Step 2: Convert to fraction form
    38,418.13/57,635.03 = 21,785.59/x
  3. Step 3: Cross multiply
    38,418.13x = 57,635.03 × 21,785.59
  4. Step 4: Simplify right side
    38,418.13x = 1,255,613,133.22
  5. Step 5: Solve for x
    x = 1,255,613,133.22/38,418.13
  6. Step 6: Final answer
    x = 32,682.83

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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.