Home / 39,150.30-54,027.14-21,244.85

Finding the Fourth Proportional to 39,150.30, 54,027.14 and 21,244.85

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Solution

The fourth proportional to 39,150.30, 54,027.14 and 21,244.85 is: 29,317.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,150.30 : 54,027.14 = 21,244.85 : x
  2. Step 2: Convert to fraction form
    39,150.30/54,027.14 = 21,244.85/x
  3. Step 3: Cross multiply
    39,150.30x = 54,027.14 × 21,244.85
  4. Step 4: Simplify right side
    39,150.30x = 1,147,798,485.23
  5. Step 5: Solve for x
    x = 1,147,798,485.23/39,150.30
  6. Step 6: Final answer
    x = 29,317.74

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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.