Home / 39,449.45-54,439.86-21,544.40

Finding the Fourth Proportional to 39,449.45, 54,439.86 and 21,544.40

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Solution

The fourth proportional to 39,449.45, 54,439.86 and 21,544.40 is: 29,731.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,449.45 : 54,439.86 = 21,544.40 : x
  2. Step 2: Convert to fraction form
    39,449.45/54,439.86 = 21,544.40/x
  3. Step 3: Cross multiply
    39,449.45x = 54,439.86 × 21,544.40
  4. Step 4: Simplify right side
    39,449.45x = 1,172,873,847.58
  5. Step 5: Solve for x
    x = 1,172,873,847.58/39,449.45
  6. Step 6: Final answer
    x = 29,731.06

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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.