Home / 39,449.12-54,440.22-21,544.65

Finding the Fourth Proportional to 39,449.12, 54,440.22 and 21,544.65

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Solution

The fourth proportional to 39,449.12, 54,440.22 and 21,544.65 is: 29,731.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.12 : 54,440.22 = 21,544.65 : x
  2. Step 2: Convert to fraction form
    39,449.12/54,440.22 = 21,544.65/x
  3. Step 3: Cross multiply
    39,449.12x = 54,440.22 × 21,544.65
  4. Step 4: Simplify right side
    39,449.12x = 1,172,895,485.82
  5. Step 5: Solve for x
    x = 1,172,895,485.82/39,449.12
  6. Step 6: Final answer
    x = 29,731.85

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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.